Current Electricity MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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The total capacitance of capacitors in parallel is:
A. The sum of the individual capacitances
B. The reciprocal of the sum of the reciprocals of the capacitances
C. Equal to the smallest individual capacitance
D. Less than the smallest individual capacitance
Answer: The sum of the individual capacitances
The resistance of a conductor is affected by all of the following except:
A. Length of the conductor
B. Cross-sectional area
C. Material of the conductor
D. Temperature of the conductor
Answer: Temperature of the conductor
The rate of flow of electric charge is known as:
A. Current
B. Voltage
C. Resistance
D. Power
Answer: Current
In a circuit with resistors in series, the current through each resistor is:
A. The same through all resistors
B. Different for each resistor
C. The sum of the currents through each resistor
D. The average of the currents through each resistor
Answer: The same through all resistors
The unit of electric capacitance is:
A. Farad
B. Ohm
C. Volt
D. Ampere
Answer: Farad
The energy stored in a capacitor can be calculated using:
A. E = 1/2 × C × V²
B. E = C × V²
C. E = V × I × t
D. E = I² × R × t
Answer: E = 1/2 × C × V²
The power dissipated by a resistor in a circuit is given by:
A. P = V² / R
B. P = I² × R
C. P = V × I
D. All of the above
Answer: All of the above
In a parallel circuit, the total current is:
A. The sum of the currents through each branch
B. The same as the current through the smallest branch
C. The same as the current through the largest branch
D. None of the above
Answer: The sum of the currents through each branch
The total energy stored in a capacitor is:
A. E = 1/2 × C × V²
B. E = C × V²
C. E = V × I × t
D. E = I² × R × t
Answer: E = 1/2 × C × V²