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Question 99Asked in RRB JE CBT-1, 17 Dec 2024, Shift 2 (12:45 PM)

A wire of given material having length L and area of cross-section A has a resistance of 4 Ω. The resistance of another wire of the same material having length

A wire of given material having length L and area of cross-section A has a resistance of 4 Ω. The resistance of another wire of the same material having length L/2 will be:
  1. A8 Ω
  2. B4 Ω
  3. C1 Ω
  4. D2 Ω
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Correct answer: (D) 2 Ω

From RRB JE CBT-1 PYQ 17 Dec 2024, Shift 2 (12:45 PM)

This is question 99 of RRB JE CBT-1 PYQ 17 Dec 2024, Shift 2 (12:45 PM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.