Current Electricity

Question: A wire of diameter 0.02 metre contains $10^{28}$ free electrons per cubic metre. For an electrical current of 100 A, the drift velocity of the free electrons in the wire is nearly

1) $1 \times 10^{–19} m/s$

2) $5 \times 10^{–10} m/s$

3) $2 \times 10^{–4} m/s$

4) $8 \times 10^3 m/s$

Solution:

Explanation: No Explanation

Electric Conduction Ohm's Law Resistance

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