Current Electricity

Question: A thick wire is stretched so that its length become two times. Assuming that there is no change in its density, then what is the ratio of change in resistance of wire to the initial resistance of wire

1) $2 : 1$

2) $4 : 1$

3) $3 : 1$

4) $1 : 4$

Solution:

Explanation: No Explanation

Electric Conduction Ohm's Law Resistance

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