Question

Assertion : An emf e is induced in a closed loop when magnetic flux is varied. The induced electric field E is not a conservative field.
Reason : The ine integral ∮ $ \vec{E}. \overrightarrow{dl}$ around the closed loop is non-zero.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (A)

We know
$\varepsilon= ∮$$\vec{E}. d \vec{l}=\frac{d\phi B}{dt}$
As $\quad∮$$\vec{E}. d \vec{l}.\ne0,$
the induced electric field is non-conservative in nature.