Current Electricity MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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The energy stored in a capacitor is given by:
A. U = 1/2 CV^2
B. U = CV
C. U = 1/2 QV
D. U = Q^2 / 2C
Answer: U = 1/2 CV^2
The electric field inside a conductor in equilibrium is:
A. Zero
B. Constant
C. Uniform
D. Varying
Answer: Zero
The potential difference between two points in an electric field is:
A. The work done in moving a unit charge from one point to another
B. The force experienced by a unit charge
C. The product of the charge and the electric field
D. The energy stored in a capacitor
Answer: The work done in moving a unit charge from one point to another
The electric potential difference between two points is:
A. The work done per unit charge
B. The electric field per unit charge
C. The magnetic field per unit charge
D. The charge per unit electric field
Answer: The work done per unit charge
The unit of capacitance is:
A. Farad
B. Coulomb
C. Volt
D. Joule
Answer: Farad
The unit of electric field strength is:
A. N/C
B. J/C
C. Coulomb
D. Farad
Answer: N/C
The energy stored in an inductor is given by:
A. 1/2 L I^2
B. 1/2 C V^2
C. 1/2 m v^2
D. L I
Answer: 1/2 L I^2
The unit of electric charge is:
A. Coulomb
B. Ampere
C. Volt
D. Joule
Answer: Coulomb