Question

A given length of a wire is doubled on itself and this process is repeated once again.By what factor does the resistance of the wire change? Answer fast and i will mark you brainliest....... Spam will be REPORTED.

Answer 1

Answer:

Decreases

Explanation:

If the length of the wire is increased, that means its resistance will decrease because the increase in area decreases the resistance.

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Answer 2

AnSwer:

As we know that resistance is directly proportional to length.

So,

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★ Resistance of the wire is directly proportional to the length of the wire.

Here,

• Let a be the resistance of wire with length L.

━━━━━━━━━━━━━━━━━━━━━━

★ As they are directly proportional to each other, if we double the length of the wire(2L), then, it's resistance will be 2a(doubles).

━━━━━━━━━━━━━━━━━━━━━━

Similarly,

★ Again, if it is doubled, the length of the wire becomes 4L and its resistance becomes 4a.

━━━━━━━━━━━━━━━━━━━━━━

Therefore, if this process is repeated, both length and resistance will get doubled by a factor of 4.

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