Question

Assertion : Resonance frequency will decrease in L-C-R series circuit if a dielectric slab is inserted in between the plates of the capacitor. Reason : By doing so, capacity of capacitor will increase.

Answer 1

Answer:

1st is the correct answer

Explanation:

becouse electric field decrease due to this charge storing capacity increases.

hope the answer will help you.

Answer 2

Answer:

A).

Explanation:

Resonant frequency, $\mathsf{\omega{ \:= \:{\dfrac{1}{{\sqrt{LC}}}}}}$

When we will insert a dielectric slab in between the plates of capacitor, it's capacitance (C) will increase. Hence, it's Resonant frequency will decrease.

Hence, A). Both assertion and reason are correct and reason is the correct explanation of the given assertion.