Capacitance Change with Dielectric – Rankers Physics

Capacitor With Dielectrics: Practice Problem & Solution

When air in a capacitor is replaced by a medium of dielectric constant K, the capacity:
Decreases K times
Increases K times
Increases \( K^2 \) times
Remains constant

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Capacitor With Dielectrics. Understanding the underlying formula is key to arriving at the correct answer below:

The capacitance of a capacitor is proportional to the permittivity of the medium. Thus, when air is replaced by a dielectric of constant K, capacity increases K times.

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Similar Practice Questions

Explore conceptually related problems to test your knowledge.

1. It is required to construct a \(10\text{ \mu F}\) capacitor which can be connected across a \(200\text{ V}\) battery. Capacitors of capacitance \(10\text{ \mu F}\) are available but they can withstand only \(50\text{ V}\). Design a combination which can yield the desired result.
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