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### Microsoft_PowerPoint___EC1intro

Course: PHY 158, Spring 2008
School: SUNY Buffalo
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Word Count: 695

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Electric EC1 Circuits (Ohm's Law) In this lab you will accomplish the following tasks 1. Measure the resistance R of a resistor 2. Measure the resistance R of resistors connected in series 3. Measure the resistance R of resistors connected in parallel 4. Record the V-I curves for an Ohmic conductor (resistor) using DC and AC voltage supply 5. Record the V-I curve for an non-Ohmic conductor (Silicon diode) using a...

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Electric EC1 Circuits (Ohm's Law) In this lab you will accomplish the following tasks 1. Measure the resistance R of a resistor 2. Measure the resistance R of resistors connected in series 3. Measure the resistance R of resistors connected in parallel 4. Record the V-I curves for an Ohmic conductor (resistor) using DC and AC voltage supply 5. Record the V-I curve for an non-Ohmic conductor (Silicon diode) using a DC voltage supply (page 1) + A + R1 E R + V Section V1 (Page 2) I I - - In section V1 the circuit shown in the figure is used for the following tasks: 1. Measure the current I through R. Estimate the current uncertainty I 2. Measure the voltage V applied across R. Estimate the voltage uncertainty V V 3. Calculate R = Compare this value with the value R m measured using I a digital multimeter. V I 4. Calculate the uncertainty in R R = R + V I 2 2 Section V2 (Page 3) + A + R1 E V I V O . . . . . I R + V I - - In section V-2 you will measure five pairs of (V,I) values for a resistor R Since the resistor is an Ohmic conductor if you plot V versus I, the points should lie on a straight line that passes through the origin. The slope of the plot is equal to the resistance R Section V2' (Page 4) + + R1 E A V I + V V I D - - .. . .. . . O. I In section V2 you will measure several pairs of (V,I) values for a Silicon diode D. If you plot V versus I, the points do not lie on a straight line. The slope of the plot is not constant but varies with I The Silicon diode is a non-Ohmic conductor. + A R1 + E Ra Rb Rc Rd + V Section V3 (Page 5) I - - In section V3 you will measure the current I that flows through four resistors (R a ,R b , R c , and R d ) connected in series. You will also measure the voltage V applied across the four resistors. The reistance of the combination is given by: V The measured value will be compared the with calculated value I Rcalc = Ra + Rb + Rc + Rd R= + A + R1 E - Rb Rd + V Section V4 I - - (Page 6) Ra Rc In section V4 you will measure the voltagr V applied across four resistors (R a ,R b , R c , and R d ) connected in parallel. You will also measure the total current I that flows through the four resistor combination. V I The measured value will be compared with the calculated value The reistance of the combination is given by: 1 1 1 1 1 = + + + Rcalc Ra Rb Rc Rd R= (Page 7) Fig.a R1 R R1 R Fig.b Section V4 V I Vpp O . . . . . Ipp In section V5 you will measure the peak-to-peak voltage Vpp applied across a resistor R and the peak-to-peak current Ipp that flows through it. In section V2 you have carried out the same measurement using a DC voltage source. In this section you will use an AC voltage generator instead. The voltage and current measurements are made using an oscilloscope. To measure Vpp the oscilloscope is connected across R as shown in fig.a. We then connect the oscilloscope across R 1 as shown in fig.b and measure V1pp The current I pp = Pairs of (Vpp ,I pp ) values are measured for two frequencies of the AC generator: f1 = 1000 Hz and f 2 = 10,000 Hz. We then plot Vpp versus I pp for f1 and f 2 . V1pp R1 Oscilloscope trace Section V4 Measurement of AC peak-to-peak voltages using the oscilloscope Measure the length L in cm of the oscilloscope trace from its minimum to its maximum value as shown in the figure L Oscilloscope screen The peak-to-peak voltage Vpp is given by: Here S is the sensitivity of the y-axis. For example: L = 5.5 cm , S = 20 mV/div Vpp =5.520 = 110 mV Vpp = LS (Page 8) Procedure Note that a new section V-2' has been added (Si diode V-I curve) For the report Do sections VI-1, VI-2, VI-3, and VI-4 Make sure you analyze the data from the new section V-2' Do questions VII-1, and VII-2 (Page 9)
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SUNY Buffalo - PHY - 158
EC3 RC circuitsIn this lab you will accomplish the following tasks: 1. Study the discharging of a capacitor through a resistor 2. Study the charging of a capacitor through a resistor 3. Study capacitors connected in series 4. Study capacitors connec
SUNY Buffalo - PHY - 158
EC4 Wheatstone BridgeIn this lab you will accomplish the following tasks: 1. Become familiar with the use of the Wheatstone bridge 2. Use the DC Wheatstone bridge to measure a resistance 3. Use the AC Wheatstone bridge to measure a resistance 4. Use
SUNY Buffalo - PHY - 158
ES1/ES2 ElectrostaticselectrometerV+qC -qIn this lab you will explore several aspects of electrostatics such as charging by induction, distribution of charges on conductors etc. The basic tool for measuring charges is the electrometer which
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EXPERIMENT M0Error Analysis(page 1)In this lab you will accomplish the following tasks: Measure the periodTof a simple pendulum 10 timesCalculate the average valueTof the pendulum periodCalculate the standard deviation Measure the el
SUNY Buffalo - PHY - 158
M2 Free FallIn this lab you will accomplish the following tasks:1. Verify the kinematics equation for free fall.gt 2 d= 22. Determine the acceleration of gravity gpage 1Section IVB 1 For a particular height d above the floor you will measur
SUNY Buffalo - PHY - 158
M4 Projectile Motion (PHY 158)(page 1)In this lab you will study projectile motion of an object of mass m moving in two dimensions under the influence of gravityx-axis: ax = 0yThe velocity v x is constantvo h x E d Dvx = vo cos o ,x =
SUNY Buffalo - PHY - 158
M10/11 (PHY 158) Rotational Dynamics I, IIIn this lab you will accomplish the following tasks: 1. Become acquainted with the PASCO rotational dynamics apparatus and the use of the dedicated Apple computer for data acquisition and display 2. Measure
SUNY Buffalo - PHY - 158
Use of the Apple computer software for M10 and M11Below we give a short tutorial that describes the use of the Apple software for the rotational mechanics experiments (M10 and M11) A. Record values of rotational frequency f of the steel or aluminun
SUNY Buffalo - PHY - 158
Physics Laboratory Report PHY 158EC1 Electric Circuits 1 (Ohm's law)_This section is completed by the student Student Name: _ Partner's Name(s): __ Date: _ TA name: __This section is completed by the TA: VI-1 (20) :_ VI-2 (40): Analysis of res
SUNY Buffalo - PHY - 158
Physics Laboratory Report PHY 158EC3 RC-Circuits_This section is completed by the student Student Name: _ Partner's Name(s): _ Date: __ TA name: __This section is completed by the TA: VI-2 VI-2 VI-4 VI-5 VI-6 VI-7 Analysis of data from V1: (15
SUNY Buffalo - PHY - 158
In problem VII-2 the question should read: Show that the relative error minimum when L1 = 50 cm RXRXis
SUNY Buffalo - PHY - 158
Physics Laboratory Report PHY 158EC4 Wheatstone Bridge_This section is completed by the student Student Name: _ Partner's Name(s): _ Date: __ TA name: __This section is completed by the TA: VI-1 (30) :_ VI-2 (25): _ VI-3 (20): _ VII-1 (10):_ V
SUNY Buffalo - PHY - 158
The electrometer voltage Vele is equal to FVdvm . Vdvm is the reading of the digital voltmeter connected to the electrometer. F is a multiplicative factor that depends on the electrometer scale. The values of the factor F are given in the table below
SUNY Buffalo - PHY - 158
EXPERIMENT M0, PHY 158 Error AnalysisI. Objectives: i. Become acquainted with the notion of the average value and the standard measurements of a parameter (period T of a simple pendulum) deviation of a series ofii. iii. iv.Measure the elongatio
SUNY Buffalo - PHY - 158
Instructions for the preparation of lab reports1. Make sure that for each report you include a title page with the following information: - Experiment title and date - Your name , your person number, and your lab partner's name - Your TA' name Fail
SUNY Buffalo - PHY - 158
Lab Schedule for PHY 158, Fall 2004DATES 8/30 9/3 9/7 9/13 9/14 9/20 9/21 9/27 9/28 10/4 10/5 10/11 10/12 10/18 10/19 10/25 10/26 11/1 11/2 11/8 11/9 11/15 11/16 11/22 11/23 11/29 11/30 12/6 12/7 12/10 12/13 12/20EXPERIMENT No Lab
SUNY Buffalo - PHY - 158
DATA TABLES FOR M0 (Error Analysis) V(a) # 1 2 3 4 5 6 7 8 9 10 5T(s) ' = _ T(s) = _V(b) # 1 2 3 4 5 6 7 8 9 10 11 12 13x1 = _ m(gm) 40 60 80 100 120 140 160 200 220 240 260 280 300 x2 x = x2 x1
SUNY Buffalo - PHY - 158
DATA TABLES FOR M2 (Free Fall)IVB1.Smaller ball d = _m , tav = _s , tav2 = _s2First drop # t(s) 1 2 3 4 5Second drop # t(s) 1 2 3 4 5d = _m ,tav = _s ,tav2 = _s2Third drop: # t(s) 1 2 3 4 5d = _m ,tav = _s ,tav2 = _s21Fourth
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SUNY Buffalo - PHY - 158
M4 Projectile Motion Measurement of the angle between the initial velocity vo of the projectile and the horizontal. 1. Place the plumb line at the end of the rail 2. Place the protractor on the rail as shown in the figure with the center of the prot
SUNY Buffalo - PHY - 158
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SUNY Buffalo - PHY - 102
SUNY Buffalo - PHY - 102
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Chapter 16Electrical Energy and CapacitanceQuick Quizzes1. (b). The field exerts a force on the electron, causing it to accelerate in the direction opposite to that of the field. In this process, electrical potential energy is converted into kine
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Chapter 18Direct-Current CircuitsQuick Quizzes1. (a), (d). Bulb R 1 becomes brighter. Connecting a wire from b to c provides a nearly zero resistance path from b to c and decreases the total resistance of the circuit from R 1 + R 2 to just R 1. I
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Chapter 20Induced Voltages and InductanceQuick Quizzes1.b, c, a. At each instant, the magnitude of the induced emf is proportional to the rate of change of the magnetic field (hence, proportional to the slope of the curve shown on the graph).2
SUNY Buffalo - PHY - 102
Chapter 21Alternating Current Circuits and Electromagnetic WavesQuick Quizzes1. (a), (c). The average power is proportional to the rms current which is non- zero even though the average current is zero. (a) is only valid for an open circuit, for
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Chapter 22Reflection and Refraction of LightQuick Quizzes1. (a). In part (a), you can see clear reflections of the headlights and the lights on the top of the truck. The reflection is specular. In part (b), although bright areas appear on the roa
SUNY Buffalo - PHY - 102
Chapter 23Mirrors and LensesQuick Quizzes1. At C.2. 3.(c). Since n water &gt; n air , the virtual image of the fish formed by refraction at the flat water surface is closer to the surface than is the fish. See Equation 23.9. (a)False. A concave
SUNY Buffalo - PHY - 102
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Chapter 26RelativityQuick Quizzes1. (a). Less time will have passed for you in your frame of reference than for your employer back on Earth. Thus, to maximize your paycheck, you should choose to have your pay calculated according to the elapsed t
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Chapter 27Quantum PhysicsQuick Quizzes1. (b). Some energy is transferred to the electron in the scattering process. Therefore, the scattered photon must have less energy (and hence, lower frequency) than the incident photon. (c). Conservation of
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Chapter 28Atomic PhysicsQuick Quizzes1. (b). The allowed energy levels in a one-electron atom may be expressed as En = - Z 2 ( 13.6 eV ) n 2 , where Z is the atomic number. Thus, the ground state ( n = 1 level ) in helium, with Z = 2 , is lower t
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