| 1 |
A capacitor stores energy in the form of. |
- A. Magnetic field
- B. Heat energy
- C. Electrical energy
- D. Mechanical energy
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| 2 |
The product of resistance and capacitanc eis. |
- A. Velocity
- B. Force
- C. Acceleration
- D. Time
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| 3 |
Presence of dielectric always. |
- A. Increase the electrostatic force
- B. Reduces the electrostatic force
- C. Do not effect electrostatic force
- D. Doubles the electrostatic force
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| 4 |
Electric potencial of earth is taken to be zero because the earth is good: |
- A. Semiconductor
- B. Conductor
- C. Insulator
- D. Dielectric
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| 5 |
Flux through any closed surface is: |
- A. 1/ε<sup>2</sup><sub>∘</sub> times the total charge enclosed in it
- B. ε<sup>2</sup><sub>∘</sub> time the total charge enclosed in it
- C. 1/ε<sub>∘</sub> ties the total charge enclosed in ti
- D. ε<sub>∘</sub> time the total charge enclosed in it
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| 6 |
A charge Q is divided into tweo parts q and Q-q and seperated by a distance R. The force of equilibrium between them will be maximum when: |
- A. q=Q/4
- B. q=Q/2
- C. q=Q
- D. None of these
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| 7 |
Special organs called ampullae of lorenzenite are present in. |
- A. Bats
- B. Cats
- C. Dogs
- D. Sharks
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| 8 |
A one microfarad capacitor of a TV is subjected to 4000 V potencial difference.The energy stored in capacitor is: |
- A. 8 j
- B. 16 j
- C. 4 x 10<sup>-3</sup>j
- D. 2 x 10<sup>-3</sup>j
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| 9 |
The photo copying process is called |
- A. Xerography
- B. Inkjet Printer
- C. Both (a) and (b)
- D. None of these
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| 10 |
Electric flux is a |
- A. Vector quantity
- B. Scalar quantity
- C. Both (a) and (b)
- D. None of above
|