Question:

Choose the wrong statement

Updated On: Jun 8, 2024
  • Magnetic flux is a scalar quantity
  • Coefficient inductance is a vector quantity
  • The mutual inductance of a pair of solenoids depends on their relative orientation
  • Lenz law gives the direction of the induced emf
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The Correct Option is B

Solution and Explanation

Answer (b) Coefficient inductance is a vector quantity
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Concepts Used:

Lenz’s law

Lenz’s law states that the induced electromotive force with different polarities induces a current whose magnetic field opposes the change in magnetic flux through the loop in order to ensure that original flux is maintained through the loop when current flows in it.

It depends on the principle of conservation of energy and Newton’s third law. To determine the direction of the induced current is most convenient method . Induced current states that he direction of an induced current is always such as to oppose the change in the circuit or the magnetic field that produces it.

Lenz’s Law Formula

The Lenz’s Law is reflected in the formula of Faraday’s law. Here the negative sign is contributed from Lenz’s law. The expression is –

Where,