Current Electricity MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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The relationship between voltage, current, and resistance is given by:
A. V = I × R
B. V = I / R
C. V = R / I
D. V = I × R²
Answer: V = I × R
The voltage drop across a resistor in a series circuit is:
A. Directly proportional to the current
B. Inversely proportional to the current
C. Independent of the current
D. Directly proportional to the resistance
Answer: Directly proportional to the current
In a series circuit, the total resistance is:
A. The sum of the individual resistances
B. The product of the individual resistances
C. The reciprocal of the sum of the reciprocals of the individual resistances
D. None of the above
Answer: The sum of the individual resistances
In a parallel circuit, the total resistance is:
A. The sum of the individual resistances
B. The product of the individual resistances
C. The reciprocal of the sum of the reciprocals of the individual resistances
D. None of the above
Answer: The reciprocal of the sum of the reciprocals of the individual resistances
The power dissipated in an electrical circuit is given by:
A. P = I × R
B. P = I × V
C. P = V × R
D. P = I / V
Answer: P = I × V
The resistance of a conductor is:
A. Directly proportional to its length
B. Inversely proportional to its length
C. Directly proportional to its cross-sectional area
D. Both A and C
Answer: Both A and C
The SI unit of electrical resistance is the:
A. Volt
B. Ampere
C. Ohm
D. Watt
Answer: Ohm
Ohm’s Law states that the current flowing through a conductor between two points is:
A. Directly proportional to the voltage across the two points
B. Inversely proportional to the resistance
C. Directly proportional to the resistance
D. Independent of the voltage across the two points
Answer: Directly proportional to the voltage across the two points
The unit of electric current is the:
A. Ohm
B. Volt
C. Ampere
D. Watt
Answer: Ampere