Welcome to the **Energy Stored In A Capacitor MDCAT** MCQs with Answers. In this post, we have shared **Energy Stored In A Capacitor** Multiple Choice Questions and Answers for PMC MDCAT** 2024**. Each question in MDCAT Physics offers a chance to enhance your knowledge regarding **Energy Stored In A Capacitor** MCQs in this MDCAT Online Test.

## Energy Stored In A Capacitor MDCAT MCQs Test Preparations

If the voltage across a capacitor is doubled, the energy stored in the capacitor will:

A) Double

B) Quadruple

C) Halve

D) Remain the same

The unit of energy stored in a capacitor is:

A) Joule (J)

B) Coulomb (C)

C) Volt (V)

D) Farad (F)

The energy stored in a capacitor when connected to a 12V battery and having a capacitance of 5 μF is:

A) 0.36 mJ

B) 0.72 mJ

C) 0.60 mJ

D) 0.12 mJ

The energy stored in a capacitor is equal to the work done to:

A) Charge the capacitor

B) Discharge the capacitor

C) Maintain constant current

D) Increase the voltage across the capacitor

If the capacitance of a capacitor is halved while the voltage remains the same, the energy stored:

A) Doubles

B) Halves

C) Remains the same

D) Quadruples

The energy stored in a capacitor depends on:

A) The capacitance and the voltage

B) The resistance and the capacitance

C) The current and the capacitance

D) The resistance and the voltage

A capacitor is charged to 10V and has a capacitance of 2 μF. The energy stored is:

A) 0.01 mJ

B) 0.1 mJ

C) 0.2 mJ

D) 1.0 mJ

If the voltage across a capacitor is tripled, the energy stored:

A) Triples

B) Doubles

C) Increases by a factor of 9

D) Increases by a factor of 6

The energy stored in a capacitor is directly proportional to the:

A) Square of the voltage

B) Square of the capacitance

C) Product of the voltage and capacitance

D) Reciprocal of the voltage

When a charged capacitor is connected to a resistor, the energy stored in the capacitor is:

A) Dispersed as heat

B) Transferred to another capacitor

C) Converted into potential energy

D) Kept constant

The energy stored in a capacitor is dependent on:

A) Voltage

B) Capacitance

C) Both voltage and capacitance

D) Neither voltage nor capacitance

The energy stored in a capacitor of 3 μF with a voltage of 5V is:

A) 0.0375 mJ

B) 0.075 mJ

C) 0.075 J

D) 0.15 J

When a capacitor is charged to a voltage

𝑉

V, the work done to charge it is:

A) Equal to the energy stored

B) Half of the energy stored

C) Twice the energy stored

D) Independent of the energy stored

To store the same amount of energy, a capacitor with twice the capacitance must be charged to:

A) Half the voltage

B) Twice the voltage

C) The same voltage

D) Four times the voltage

If the voltage across a capacitor is increased by a factor of 3, the energy stored in the capacitor will:

A) Increase by a factor of 3

B) Increase by a factor of 9

C) Increase by a factor of 6

D) Increase by a factor of 2

The energy stored in a capacitor is independent of:

A) Capacitance

B) Voltage

C) Charge

D) Resistance

The energy stored in a capacitor with a capacitance of 10 μF and a voltage of 20V is:

A) 2 mJ

B) 4 mJ

C) 5 mJ

D) 10 mJ

For a given capacitor, if the capacitance is doubled and the voltage remains the same, the energy stored will:

A) Double

B) Quadruple

C) Remain the same

D) Halve

The energy stored in a capacitor is proportional to:

A) The square of the voltage

B) The voltage

C) The square of the capacitance

D) The product of the voltage and capacitance

If a capacitor is charged to 6V and stores 0.36 mJ of energy, the capacitance is:

A) 0.01 μF

B) 0.02 μF

C) 0.03 μF

D) 0.04 μF

The energy stored in a capacitor increases with:

A) Increasing voltage

B) Increasing resistance

C) Decreasing capacitance

D) Decreasing voltage

The energy stored in a capacitor is:

A) The work done to charge it

B) The work done to discharge it

C) The energy dissipated as heat

D) The current passing through it

For a capacitor with a capacitance of 8 μF and a voltage of 15V, the energy stored is:

A) 0.9 mJ

B) 1.2 mJ

C) 1.8 mJ

D) 2.4 mJ

The energy stored in a capacitor with a capacitance of 1 μF and a voltage of 100V is:

A) 0.005 mJ

B) 0.05 mJ

C) 0.5 mJ

D) 5 mJ

If the energy stored in a capacitor is 0.5 mJ and the voltage is 10V, the capacitance is:

A) 0.01 μF

B) 0.1 μF

C) 1 μF

D) 10 μF

The energy stored in a capacitor of 4 μF and charged to 8V is:

A) 0.128 mJ

B) 0.256 mJ

C) 0.512 mJ

D) 1.024 mJ

The energy stored in a capacitor is inversely proportional to:

A) Capacitance

B) Voltage

C) Square of the voltage

D) Square of the capacitance

For a capacitor with a capacitance of 6 μF and a voltage of 5V, the energy stored is:

A) 0.075 mJ

B) 0.15 mJ

C) 0.3 mJ

D) 0.45 mJ

The energy stored in a capacitor increases if:

A) Capacitance is increased

B) Voltage is decreased

C) Resistance is increased

D) Capacitance is decreased

A capacitor with a capacitance of 12 μF and a voltage of 4V has an energy stored of:

A) 0.096 mJ

B) 0.192 mJ

C) 0.384 mJ

D) 0.768 mJ

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