Question
Download Solution PDFConsider the magnitudes and directions of the induced potential difference in the following situations:
(a) A current-carrying straight wire moving with a speed of 1.5 m/s towards a stationary coil.
(b) The same current-carrying straight wire moving away with a speed of 1.5 m/s from the same stationary coil.
The induced potential differences are of ________ magnitude(s) and have ________ sign(s) in the above two cases.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is 'the same ,opposite'.
Key Points
- A potential difference can be induced (created) in a conductor when there is movement between the conductor and a magnetic field.
- This can occur in two different ways: a coil of wire is moved in a magnetic field. a magnet is moved into a coil of wire.
- The induced emf depends upon the magnetic field and number of turns and it is independent of the resistance of the coil.
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