Honors Physics 324 Name:
HW# 2: Resistance and Ohms Law
Pa e 724 C : # 12
Pa es724725 CE: #2 3 5 6 8
Pa 6726 P:#1011121516
12. Explain the difference between resistivity and resistance.
2. The four conducting cylinders
Review Phys 1220 Test 1 Chapters 16 20 Dr Lartey
1. The displacement of a vibrating string versus position along the string is shown in the figure.
The periodic waves have a speed of 10.0 cm/s. A and B are two points on the string.
What is the
Phys 1220 Review Test 2 Dr Lartey
1. A single circular loop of wire of radius 0.45 m carries a constant current of 2.4 A. The loop
may be rotated about an axis that passes through the center and lies in the plane of the loop.
When the orientati
1. A flashlight bulb carries a current of 0.18 A for 78 s. How much charge flows
through the bulb in this time? How many electrons?
2. Picture the Problem: A current flows through the filament of a flashlight bulb.
Quiz 23 Dr Lartey
1. A 75-watt lightbulb uses an average power of 75 W when connected to an rms voltage of
120 V. (a) What is the resistance of the lightbulb? (b) What is the maximum current in the
bulb? (c) What is the maximum power used by the
Phy 1220 Quiz 24 Dr Lartey
IP (a) How fast would a motorist have to be traveling for a yellow traffic light to appear green because of
the Doppler shift? (b) Should the motorist be traveling toward or away from the traffic light to see this effect?
Phys 1220 Quiz19 Dr Lartey
1. During a particular thunderstorm, the electric potential difference between a cloud and the ground is
, with the cloud being at the higher potential. What is the change
in an electron's electric potential energy when the elec
Phys 1220 Quiz 17 Dr Lartey
1. Two speakers, one directly behind the other, are each generating a 245-Hz sound
wave. What is the smallest separation distance between the speakers that will
produce destructive interference at a listener standing in front o
Phys 1220 Quiz 16 Dr Lartey
Light is an electromagnetic wave and travels at a speed of
human eye is most sensitive to yellow-green light, which has a wavelength of
. What is the frequency of this light?
REASONING Since light behaves as a wave,