Q448
Factors affecting resistance of matter: 1. Temperature 2. Nature of substance 3. Conductor length 4. Area of transverse passage
A.
1, 2, 3 and 4
AnswerB.
only 1, 3, 4
C.
only 1, 2, 3
D.
only 1 and 3
Answer: Option A
Solution
Answer: Option A
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