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. Two bodies A(of mass 1kg) and B(of mass 3 kg) are dropped from heights of 16m and 25m
  2. Radius of orbit of satellite of earth is R. Its kinetic energy is proportional to
  3. If emf induced in a coil is 2 V by changing the current in it from 8 A to 6 A
  4. Which one of the following statements is not correct in case of a semiconductor?
  5. In a P-N junction