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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