Current Electricity

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

1) $1 \times 10^{-6}$

2) $4 \times 10^{-7}$

3) $3 \times 10^{-7}$

4) $2 \times 10^{-7}$

Solution:

Explanation: No Explanation

Electric Conduction Ohm's Law Resistance

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