Consider the magnitudes and directions of the induced potential difference in the following situations: (a) A magnet moving with a speed of 1 m/s with its north pole towards a stationary coil. (b) The same magnet moving with a speed of 1 m/s with its south pole towards the same stationary coil. The induced potential differences are of ______ magnitude(s) and have ______ sign(s) in the above two cases.
- A.the same, the same
- B.the same, opposite
- C.different, opposite
- D.different, the same
Show answer
The same magnet moves at the same speed in both cases, so the rate of change of magnetic flux through the coil is equal and the induced potential difference has the same magnitude.
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