| 1 |
Electron volt is the unit of. |
- A. Potential
- B. Potential difference
- C. Electric current
- D. Electric energy
|
| 2 |
The number of lines per unit area passing perpendicular through an area is called |
- A. Flux
- B. Electric intensity
- C. Both (a) , (b)
- D. None of these
|
| 3 |
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
|
| 4 |
SI unit of electric flux is. |
- A. NmC<sup>1</sup>
- B. Nm<sup>-1</sup> C<sup>1</sup>
- C. Nm<sup>2</sup>C<sup>-1</sup>
- D. Nm<sup>3</sup>C<sup>2</sup>
|
| 5 |
The absolute electric potential at a point distance 20 cm from a charge of 2 uC is. |
- A. 9 x 10<sup>2</sup> V
- B. 9 x 10<sup>3</sup> V
- C. 9 x 10<sup>4</sup> V
- D. 9 x 10 <sup>5</sup> V
|
| 6 |
The electric field created by positive charge is: |
- A. Radially outward
- B. Circular
- C. Radially inward
- D. Zero
|
| 7 |
Concept of the electric field lines is introduced by |
- A. Coulomb
- B. Faraday
- C. Einstein
- D. Joseph henry
|
| 8 |
Electro encephalon graph is the diagnostic test for the working of. |
- A. Eye
- B. Heart
- C. Brain
- D. Lungs
|
| 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 |
The electrical intensity is equal to: |
- A. -Δr/Δv
- B. Δv/Δr
- C. Δv/Δv
- D. -Δv/Δr
|