| 1 |
Electric power: |
- A. Vx1
- B. V<sup>2</sup>x1
- C. V/1
- D. V/1<sup>2</sup>
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| 2 |
The value of maximum output power is? |
- A. E/4R
- B. E<sup>2</sup>/4R
- C. E/4R<sup>2</sup>
- D. Non of above
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| 3 |
Unit (S.I) of temperature coefficient of resistivity of a material is |
- A. K
- B. K<sup>-1</sup>
- C. <sup>o</sup>C
- D. K<sup>-2</sup>
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| 4 |
Specific resistance of a material depends upon. |
- A. Length
- B. Area
- C. Temperature
- D. Both A and B
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| 5 |
If the resistance of 500 Ohm have fourth band of silver colour then its upper maximum resistance will be. |
- A. 600 Ohm
- B. 550 Ohm
- C. 450 Ohm
- D. 400 Ohm
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| 6 |
The potential difference between the head and tail of an electrical to |
- A. 600 Volt
- B. 700 Volt
- C. 800 Volt
- D. 900 Volt
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| 7 |
Potentiometer is used to. |
- A. Compare emf of two cells
- B. Detect internal resistance of cell
- C. Measure P.D.
- D. All of these
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| 8 |
Thermosouple is an arrangement of two different metals: |
- A. Two convert heat energy into electrical energy
- B. To produce more heat
- C. To convert heat energy into chemical energy
- D. To convert electrical energy into heat energy
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| 9 |
106 electrons are moving through a wire per second the current developed is: |
- A. 1.6 x 10-19 A
- B. 1 A
- C. 1.6 x 10-13A
- D. 106 A
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| 10 |
The drift velocity is of order: |
- A. 10<sup>-13</sup>m/s
- B. 10<sup>3</sup> m/s
- C. 10<sup>-3</sup>m/s
- D. 10<sup>-4</sup>m/s
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