1. How does the resistance of a 100W light bulb compare to the resistance of a 6

Question

1. How does the resistance of a 100W light bulb compare to the resistance of a 60W light bulb? A. The 100W light bulb has a higher resistance than the 60W light bulb. B. The 100W light bulb has a lower resistance than the 60W light bulb. C. The 100W light bulb has the same resistance as the 60W light bulb. D. Not enough information to tell.

2 What causes an electric field?

a A moving change only.

b A stationary charge only.

c Any charge, moving or stationary.

d A stationary magnet.

3 What causes a magnetic field?

a A moving change only.

b A stationary charge only.

c Any charge, moving or stationary.

4 What does a step-up transformer do?

a It steps up the energy.

b It steps up the power.

c It steps up the voltage.

d It steps up the current.

Explanation / Answer

1) the resistance depends on weather the bulbs are connected in series or parallel. as that information is not given, the answer would be:

D) not enough informnation to tell.

2) both moving and stationary charges create electric field

hence answer is

C) Any charge, moving or stationary.

3) magnetic field can be only caused by moving charge. hence answer is

a A moving change only.

4) a step up transformer steps up the voltage

hence answer is C

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