Question

resistanc of a wire 1024 ohm . what will be its new resistances if the length is doubled and diameter is also doubled

Answer 1

Answer:

If the length of a wire is doubled, then its resistance becomes doubled.

So it becomes 2048 ohm

When the diameter of the conductor is doubled, then its resistance decreases four times

So it becomes 1024/4= 256 ohm

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