| 1 |
The relation R = V/I is discovered by a |
- A. American scientist
- B. German scientist
- C. British Scientis
- D. Russian scientist
|
| 2 |
The rate of flow of charged is called. |
- A. Volt
- B. Ohm
- C. Current
- D. Coulomb
|
| 3 |
Which of the following is non-magnetic substace |
- A. iron
- B. Steel
- C. Silver
- D. Nickel
|
| 4 |
The SI unit of voltage is. |
- A. Watt
- B. Joule
- C. Coulomb
- D. Volt
|
| 5 |
Which of the following is magnetic substance. |
- A. Glass
- B. Marble
- C. Gold
- D. Cobalt
|
| 6 |
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
|
| 7 |
A microphone converts mechanical wave energy into. |
- A. Video signals
- B. Ausio and video signals
- C. Audio signals
- D. None of these
|
| 8 |
The formula of find the magnitude of current is. |
- A. I = Q/t
- B. I = QV
- C. I = CV
- D. I = C/Q
|
| 9 |
An electric current in a conductor is ude to the flow of. |
- A. Positive ions
- B. Negative ions
- C. Positive charge
- D. Free electrons
|
| 10 |
Mathematical form of Ohm's law. |
- A. V = I/R
- B. V = R/I
- C. V = IR
- D. V m/R
|
