Question

Three plotting compasses are to a solenoid carrying a current. How many of the compass needles will change direction, if the current through the solenoid is increased?
(Ignore the effect of the earth’s magnetic field).
A. Only I compass needle
B. 2 compass needle
C. 3 compass needle
D. None of the above

Answer 1

Answer:

B.2 compass needle

Explanation:

Answer 2

Answer:none of the above

Explanation:

The compass needle will not change as there will be uniform(constant) magnetic field around a solenoid so no movement is shown by compass needle..

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