# The voltage drop across the diodes in the 4 way

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The voltage drop across the diodes in the 4-way bridge is 0.7 V per diode.The 4 V zener diode is initially isolated from the circuit by Switch A.Figure 3Question 7Which of the following is closet to VMAXat terminal X?2 V20 Hzload1 : 210XAA.4 VB.2.6 VC.5.6 VD.4.2 VµF
Question 8Which of the following adjustments would decrease the size of the ripple voltage acrossthe load?
Question 9Which of the following best explains why the zener diode will unlikely act to smooth thevoltage to a constant 4 V?
SECTION BDetailed Study 3continued
2012 PHYSICS EXAM 1Figure 4 shows a charging and discharging circuit for a 200F capacitor.The capacitor is initially discharged and the switch is in position B.The switch is then moved from position B to A, as shown in Figure 4.Figure 4Question 10Which of the following best approximates the time taken for the voltage across the 10 kresistor to reach 9 V?24 V200µF10 kΩ5 kΩA B
TSSM 2012Page 33 of 37SECTION BDetailed Study 3continuedTURN OVER
Question 11After an initial change, which of the following best approximates the time taken for thevoltage across the 5 kresistor to return to 0 V?A.1 secB.2 secC.5 secD.10 sec
2012 PHYSICS EXAM 1TSSM 2012Page 34 of 37Question 12Which of the following plots(A-D)best matches the voltage vs. time curve across the 5 kduring the discharging process?END OF QUESTION AND ANSWER BOOK48121620242832123456Time (s)Voltage (V)ABCD
2012 PHYSICS EXAM 1TSSM 2012Page 35 of 37Data Sheet1Velocity, acceleration2Equations for constant acceleration3Newton’s second law4Circular motion5Hooke’s law6Elastic potential energy7Gravitational potential energy near the surfaceof the earth8Kinetic energy9Newton’s law of universal gravitation10Gravitational field11Stress12Strain13Young’s modulus14Transformer action15AC voltage and current,16Voltage, power,17Resistors in series18Resistors in paralleltxvtvaatuv221atutxasuv222tvux21maF2224TrrvakxF221kxmgh221mv221rMGMF2rGMgAFLLstrainstressE2121NNVVppRMSVV221ppRMSII221IRVVIP21RRRT21111RRRT
2012 PHYSICS EXAM 1TSSM 2012Page 36 of 3719CapacitorsTime constant:20Lorentz factor21Time dilation22Length contraction23Relativistic mass24Universal gravitational constantG = 6.67 x 10-11N m2kg-225Mass of EarthME= 5.98 x 1024kg26Radius of EarthRE= 6.37 x 106m27Mass of the electronme= 9.1 x 10-31kg28

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Tags
Mass, Speed of light, Further Electronics