CBSE Class 12 Physics 2017 Outside Delhi Set 1 Paper

Question : 1

Total: 26

SECTION -A

1. Nichrome and copper wires of same length and same radius are connected in series. Current I is passed through them. Which wire gets heated up more? Justify your answer.

Solution:

(i) Nichrome
(ii) RNi>RCu (or Resistivity Ni> Resistivity ‌Cu )

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