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.

Related Questions:

1. A body with mass 5 kg is acted upon a force F=(-3i+4j) N.If its initial velocity at
2. Surface tension of a solution is 30 x 10⁻² N/m. The radius of the soap bubble is 5 cm
3. An LED is constructed from a p-n junction based on a certain semi-conducting
4. C and Si both have same lattice strcture, having 4 bonding electron in each
5. The ratio of the weight of a man in a stationary lift and when it is moving downwards

Topics: Current Electricity (136)
Subject: Physics (2479)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends