Consider a wire carrying a steady current I, placed in a uniform magnetic field B perpendicular to its length. Consider the charges inside the wire. It is known that magnetic forces do no work. This implies that,
a. | the motion of charges inside the conductor is unaffected by B since they do not absorb energy. |
b. | some charges inside the wire move to the surface as a result of B. |
c. | if the wire moves under the influence of B, no work is done by the force. |
d. | if the wire moves under the influence of B, no work is done by the magnetic force on the ions assumed fixed within the wire. |
1. (b, c)
2. (a, d)
3. (b, d)
4. (c, d)
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