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प्रश्न
The electric resistance of a certain wire of iron is R. If its length and radius are both doubled, then ______.
पर्याय
- the resistance and the specific resistance, will both remain unchanged.
- the resistance will be doubled and the specific resistance will be halved.
- the resistance will be halved and the specific resistance will remain unchanged.
- the resistance will be halved and the specific resistance will be doubled.
MCQ
रिकाम्या जागा भरा
उत्तर
The electric resistance of a certain wire of iron is R. If its length and radius are both doubled, then the resistance will be halved and the specific resistance will remain unchanged.
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