| 1 |
Selenium is a |
- A. Insulator
- B. Photoconductor
- C. Conductor
- D. First insulator then conductor
|
| 2 |
The electric field created by positive charge is |
- A. Radially inward
- B. Zero
- C. Circular
- D. Radially outward
|
| 3 |
Photo copier and inkjet printer are the applications of |
- A. Magnetism
- B. Electricity
- C. `.Electro magnetism
- D. Electrostatics
|
| 4 |
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
|
| 5 |
Electric field intensity at a point is defined by the relation. |
- A. E= q/F
- B. E = F/q
- C. E = qF
- D. E = F/q2
|
| 6 |
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
|
| 7 |
Identify the practical application of electrostatic force. |
- A. Inkjet printer
- B. x rays
- C. Laser
- D. A.C. Generator
|
| 8 |
The electric intensity at infinite distance from the point charge is |
- A. Infinite
- B. Zero
- C. Positive
- D. Negative
|
| 9 |
The product of resistance and capacitanc eis. |
- A. Velocity
- B. Force
- C. Acceleration
- D. Time
|
| 10 |
The "toner" of photocopier is given: |
- A. Positive charge
- B. Negative charge
- C. Remains neutral
- D. All of above
|