Exams › NEET › Physics

Assertion: If three capacitors of capacitances \(C_1 < C_2 < C_3\) are connected in parallel, then their equivalent capacitance \(C_p\) is greater than the equivalent capacitance \(C_s\) in series. Reason: \(\frac{1}{C_p} = \frac{1}{C_1} + \frac{1}{C_2} + \frac{1}{C_3}\).

1. If both assertion and reason are true and the reason is the correct explanation of the assertion.
2. If both assertion and reason are true but reason is not the correct explanation of the assertion.
3. If assertion is true but reason is false.
4. If the assertion and reason both are false.

Correct answer: If assertion is true but reason is false.

Solution

The assertion is true because in parallel the equivalent capacitance is the sum \(C_1 + C_2 + C_3\), which is always greater than the series equivalent. The reason is false because the reciprocal-sum formula applies to series, not parallel.

Related NEET Physics questions

• A capacitor is fully charged by a battery, and then the battery is disconnected. When a dielectric slab is inserted between the capacitor plates, what is the effect?
• In a charged capacitor, where is the energy stored?
• A capacitor of capacitance $C$ is charged to a potential $V$. The energy stored in it is:
• A capacitor of capacitance $50\,\mu\text{F}$ is charged to $10\,\text{V}$. What is the energy stored in it?
• A parallel-plate capacitor has air between its plates. When the air is replaced by a dielectric material of dielectric constant $K$, the capacitance:
• Eight identical small drops, each of radius $r$ and carrying charge $q$, coalesce to form one large drop. What is the ratio of the electric potential of the big drop to that of one small drop?

⚔️ Practice NEET Physics free + battle 1v1 →