The electric resistance of a certain wire of iron is R. If its length and radius

The electric resistance of a certain wire of iron is R. If its length and radius are both doubled, then

Options

(a) The resistance will be doubled and the specific resistance will be halved
(b) The resistance will be halved and the specific resistance will remain unchanged
(c) The resistance will be halved and the specific resistance will be doubled
(d) The resistance and the specific resistance both will remain unchanged

Correct Answer:

The resistance will be halved and the specific resistance will remain unchanged

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. A bottle full of water in a space ship at 30⁰C is carried on the moon.
  2. A neutron moving with velocity v collides with a stationary particle
  3. According to Hook’s law of elasticity, if stress is increased, the ratio of stress
  4. A tyre filled with air (27° C and 2 atm) bursts. The temperature of air is (ˠ=1.5)
  5. A wire is suspended vertically from one of its ends is stretched by attaching a weight