| 1 |
The SI unit of voltage is. |
- A. Watt
- B. Joule
- C. Coulomb
- D. Volt
|
| 2 |
The best material to be used as a core in the coils for making electromagnet is. |
- A. Rubber
- B. Plastic
- C. Soft Iron
- D. Steel
|
| 3 |
Which of the following is magnetic substance. |
- A. Glass
- B. Marble
- C. Gold
- D. Cobalt
|
| 4 |
A microphone converts mechanical wave energy into. |
- A. Video signals
- B. Ausio and video signals
- C. Audio signals
- D. None of these
|
| 5 |
Who was the first whihc explore the electromagnetic effect. |
- A. Micheal faraday
- B. George Simon Ohm
- C. Coulomb
- D. Hans Oested
|
| 6 |
An electric circuit is the path along whihc. |
- A. Electron revolve around the nucleus of an atom
- B. Electric charge flows.
- C. Magnetic lines of force move
- D. Electric motors move
|
| 7 |
Our electricity bill is taken in. |
- A. Wh
- B. kWh
- C. micro Wh
- D. m Wh
|
| 8 |
The rate of flow of charged is called. |
- A. Volt
- B. Ohm
- C. Current
- D. Coulomb
|
| 9 |
A close circuit is the. |
- A. Complete path of electric current
- B. Incomlete path of electric current
- C. Broken path of electric current
- D. None of the above
|
| 10 |
The relation R = V/I is discovered by a |
- A. American scientist
- B. German scientist
- C. British Scientis
- D. Russian scientist
|
