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Question
Two parallel wires, 4 cm apart, carry currents of 2 A and 4 A respectively, in opposite directions. The force per unit length of one wire on the other is:
A) 1x10-3N/m, repulsive
B) 1 x10-3N/m, attractive
C) 4 x10-5N/m, repulsive
D) 4 x10-5N/m, attractive
E) none of these
Answer
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Related questions
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Q:
In a photoelectric effect experiment at a frequency above cut off, the stopping potential is proportional to:
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Q:
In a photoelectric effect experiment at a frequency above cut off, the number of electrons ejected is proportional to:
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Q:
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Q:
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Q:
The resolving power of a telescope can be increased by:
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Q:
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Q:
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