- 1(current)
Q. No.Temperature dependence of resistivity (T) of semiconductors, insulators, and metals is significantly based on the following factors:
| 1. | number of charge carriers can change with temperature T |
| 2. | the time interval between two successive collisions can depend on T |
| 3. | length of material can be a function of T |
| 4. | mass of carriers is a function of T |
Which of the above statements is correct?
1. (a, b)
2. (c, d)
3. (b, c)
4. (b, d)
Subtopic: Derivation of Ohm's Law |
77%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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A metal rod of length 10 cm and a rectangular cross-section of 1 cm x 1/2 cm is connected to a battery across opposite faces. The resistance will be:
| 1. | maximum when the battery is connected across 1 cm x 1/2 cm faces. |
| 2. | maximum when the battery is connected across 10 cm x 1 cm faces. |
| 3. | maximum when the battery is connected across 10 cm x 1/2 cm faces. |
| 4. | same irrespective of the three faces. |
Subtopic: Derivation of Ohm's Law |
58%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
- 1(current)
Q. No.
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