| 1 |
If a charge body moved against the electric field it will again |
- A. Potential energy
- B. K.E
- C. Mechanical Energy
- D. Electric potential energy
|
| 2 |
Coulomb's force is: |
- A. Conservative force
- B. None conservative force
- C. Similar to frictional force
- D. None of the above
|
| 3 |
Closeness of the electric field lines is the measure of. |
- A. Direction of field
- B. Strength of field
- C. Potential difference
- D. Uniformity of field
|
| 4 |
One of the applications of electrostatic induction is |
- A. Laser
- B. Photocopier
- C. X ray machine
- D. Wilson cloud chamber
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| 5 |
Which material should be inserted between the plates of a capacitor in order to increase its capacitance. |
- A. Copper
- B. Mica
- C. Iron
- D. Tin
|
| 6 |
Electric intensity due to an infinite sheet of charge is: |
- A. ∂/2ε<sub>∘</sub>
- B. ∂/rε<sub>∘</sub>
- C. ∂/r2ε<sub>∘</sub>
- D. none of these
|
| 7 |
A changing electric flux creates. |
- A. Electric fields
- B. Gravitational
- C. Magnetic field
- D. Electric charge
|
| 8 |
Identify the practical application of electrostatic force. |
- A. Inkjet printer
- B. x rays
- C. Laser
- D. A.C. Generator
|
| 9 |
If F1 and F2 are teh magnetic forces acting on a particle and electron respectively when moving perpendicular to the magnetic field then. |
- A. F1=F2
- B. F1>F2
- C. F1<F2
- D. F1 = 4F2
|
| 10 |
Two metallic sphere of radius 2 cm and 4 cm get equal quantity of charge. Which has greater surface charge density ? |
- A. 2<sup>nd</sup> sphere
- B. Both have same
- C. First sphere
- D. None of these
|