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Factors Affecting Resistance & How They Affect

When the diam...

Question

When the diameter of wire is doubled its resistance befcomes:
(a) Double (b) four times (c) one - half (d) one - fourth

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Solution

So, the correct option is (d)

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Similar questions

Q. When the diameter of a wire is doubled, its resistance becomes:

(a) double
(b) four times
(c) one-half
(d) one-fourth

Q. When the area of cross-section of a conductor is doubled, its resistance becomes:

(a) double
(b) half
(c) four time
(d) one-fourth

Q. Keeping the potential difference constant, the resistance of a circuit is doubled. The current will become:

(a) double
(b) half
(c) one-fourth
(d) four times

The length of a simple pendulum is made one-fourth. Its time period becomes :

(a) four times (b) one-fourth

(c) double (d) half.

Keeping the p.d. constant, the resistance of the circuit is halved. The current will become.
(a) One-fourth (b) four times (c) half (d) double

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