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2 nd Year : Unit 2.1 ( Current Electricity ) - Current Electricity

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A nichrome wire 50cm long and one square millimeter cross-section carries a current of 4A when connected to a 2V battery. The resistivity of nichrome wire in ohm-meter is

A. 1 x 10^-6

B. 4 x 10^-7

C. 3 x 10^-7

D. 2 x 10^-7

E. None of the above

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Correct choice: A

Explanation:

None

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Eamcet Physics 2 nd Year : Unit 2.1 ( Current Electricity ) - Current Electricity

Eamcet Physics
2 nd Year : Unit 2.1 ( Current Electricity ) - Current Electricity