CBSE Class 12 Physics 2017 Outside Delhi Set 1 Paper

Question : 1 of 26

Marks: +1, -0

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)

{\R}_{ {\Ni}}> {\R}_{ {\Cu}}

(or Resistivity

{\Ni}>

Resistivity

_{ {\Cu}}

)

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