What is the direction of induced current produced in the
loop, if any, when the current flowing in the straight wire
(a) is steady, i.e., does not vary.
(b) is increasing in magnitude.
Justify your answer in each case.
Answer:
(a)
No induced current will be produced in the loop since the constant current
flowing that in the straight wire produces a constant magnetic field.
Hence, no induced current is produced in the loop.
(1)
(b) Since, current in the straight wire is changing, the magnetic
flux associated with the loop will change and hence induced current will be produced
in it. (1)
Applying Fleming's right-hand rule, the current
flowing in the loop will be in clockwise
direction. (1)
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