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## Homework Statement

Actually this is not exactly a homework. I am trying to understand the following situation only.

Consider a ring shaped coil of N turns and area A. Connect it to an external circuit with a twisted pair of leads ( this info is trivial). The resistance of the circuit along with the coil itself is R. Now the coil in a magnetic field.

Suppose the flux through the coil is somehow altered from its initial steady state value (A) to final value (B).

The author claims that the total charge Q that flows through the circuit as a result is independent of the rate of change of the flux. I am having hard time understanding this. Can anyone help me understand it.

## Homework Equations

[tex]\oint[/tex]

**E**.d

**l**= -d[tex]\Phi[/tex]/dt

## The Attempt at a Solution

faraday's law is the most relevant law here, according to the book. But I am just not getting what the author is saying.