Question

Assertion - Resonance frequency will decrease in a series LCR circuit if a dielectric slab is inserted in between the plates of the capacitor.

Reason - By doing so, capacity of capacitor will increase.

Based on the above statements, choose the correct alternative.

A. Both assertion and reason are true, and reason is a correct explanation of assertion.
B. Both assertion and reason are true, but reason is not a correct explanation of assertion.
C. Assertion is true, but reason is false.
D. Assertion is false, but reason is true.

Answer 1

The resonance frequency of a series LCR circuit will decrease if a dielectric slab is inserted in between the plates of the capacitor because the capacity of the capacitor will increase.

Step-by-step explanation:

The correct alternative in this case is A. Both assertion and reason are true, and reason is a correct explanation of assertion.

Resonance frequency in an RLC circuit depends on the values of inductance, capacitance, and resistance. When a dielectric slab is inserted between the plates of the capacitor, the capacity of the capacitor increases. As a result, the resonance frequency decreases because the increased capacitance leads to a decrease in the overall reactance of the circuit.