| 1 |
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
|
| 2 |
The electrostatic force between two charges is 42 N, If we place a dielectric of E<sub>y</sub>=2.1 between the charges then the force become equal to. |
- A. 42 N
- B. 88.2 N
- C. 20 N
- D. 2 N
|
| 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 |
Electric flux is a: |
- A. Scalar quantity
- B. Vector quantity
- C. Variable quantity
- D. None of these
|
| 5 |
For computation of electric flux, the surface area should be. |
- A. Parallel
- B. Flat
- C. Curved
- D. Spherical
|
| 6 |
The net charge on a capacitor magnitude of charge of charge |
- A. Infinity
- B. 2 q
- C. Q/2
- D. Zero
|
| 7 |
Charge on electron is |
- A. 1.6 x 10<sup>-19</sup> C
- B. 1.6 x 10<sup>19</sup>C
- C. 1.6 x 10<sup>-17</sup>C
- D. 1.6 x 10<sup>17</sup>C
|
| 8 |
Total flux through a closed surface depends on. |
- A. Shape of surface
- B. Medium only
- C. Charge enclosed only
- D. Charge and Medium
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| 9 |
If the distance between the two charged bodies is halved, the force between them becomes. |
- A. Double
- B. Half
- C. Four times
- D. One times
|
| 10 |
In Millikan's oil drop experiment a charged particle of mass 'm' is in equilibrium in an will |
- A. Zero
- B. g/2
- C. g
- D. 2g
|