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Home Questions 7JHWVGG3VZ
Target Exam

CUET

Subject

Physics

Chapter

Current Electricity

Question:
Potentiometer wire of length 1m is connected in series with 490Ω  resistance and 2 V battery. If 0.2 mV/cm is the potential gradient, then what is the resistance of the potentiometer wire?
Options:
4.9Ω
5.6Ω
3.8Ω
12.4Ω
Correct Answer:
4.9Ω

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