If copper and silicon are cooled from 300 K to 60 K, then the specific resistance will:
1. Decrease in copper but increase in silicon
2. Increase in copper but decrease in silicon
3. Increase in both
4. Decrease in both
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe specific resistance of a conductor increases with:
1. | increase in temperature. |
2. | increase in cross-section area. |
3. | increase in cross-section and decrease in length. |
4. | decrease in cross-section area. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA \(6\)-volt battery is connected to the terminals of a three-metre-long wire of uniform thickness and resistance of \(100\) ohms. The difference of potential between two points on the wire separated by a distance of \(50\) cm will be:
1. \(3\) V
2. \(1\) V
3. \(1.5\) V
4. \(2\) V
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology