NEET Physics Ohm's Law MCQ Question
Consider a circuit where two identical resistors are connected in series. Describe the effect on the total resistance if the length of each resistor is doubled.
The total resistance is doubled.
The total resistance is halved.
The total resistance remains the same.
The total resistance becomes quadruple.
Correct Answer
Detailed Explanation
Doubling the length of a resistor doubles its resistance. When two such resistors are in series, the total resistance becomes quadruple since R ∝ l.
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