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The specific resistance of manganin is . The resistance of a cube of length 50m will be: The…
The specific resistance of manganin is $50 \times 10^{-8}\ \Omega\text{ m}$.
(i)[1.0]
The resistance of a cube of length 50m will be:
- (a)$10^{-6}\ \Omega$
- (b)$2.5 \times 10^{-5}\ \Omega$
- (c)$10^{-8}\ \Omega$
- (d)$50 \times 10^{-8}\ \Omega$
(ii)[1.0]
The specific resistance of the combination of two cubes of length 50m in series will be:
- (a)$10^{-6}\ \Omega\text{ m}$
- (b)$2.5 \times 10^{-5}\ \Omega\text{ m}$
- (c)$2 \times 10^{-6}\ \Omega\text{ m}$
- (d)$50 \times 10^{-8}\ \Omega\text{ m}$
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From ISC 2022 Specimen Physics Paper 1, question 41.