| 1 |
The unit of electrical energy is: |
- A. Joule
- B. Watt
- C. Volt
- D. Electron volt
|
| 2 |
Electric field lines of force were first introduced by: |
- A. Ampere
- B. Farady
- C. Fleming
- D. Coulomb
|
| 3 |
Five joules of work is needed to shift 10 C of charge from one place to another. The potential difference between the places is: |
- A. 0.5 V
- B. 2 V
- C. 5 V
- D. 10 V
|
| 4 |
<p class="MsoNormal">Ultrasound waves carry energy:<o:p></o:p></p> |
- A. <p class="MsoNormal">Less<o:p></o:p></p>
- B. <p class="MsoNormal">More<o:p></o:p></p>
- C. <p class="MsoNormal">Equal<o:p></o:p></p>
- D. <p class="MsoNormal">None of these<o:p></o:p></p>
|
| 5 |
A positive electric charge: |
- A. Attracts other positive charge
- B. Repels other positive charge
- C. Attracts a neutral charge
- D. Repels a neutral chage
|
| 6 |
When you rub a plastic rod against your hair several times and put it near some bits of paper, the pieces of papers are attracted towards it. What does this observation indicate? |
- A. the rod and the paper are oppositely charged
- B. the rod acquires a positive charge
- C. the reod and the paper have the same charges
- D. the rod acquires a negative charge
|
| 7 |
The speed of sound was accurately measured in: |
- A. 1736
- B. 1737
- C. 1738
- D. 1739
|
| 8 |
<p class="MsoNormal">Sound waves having frequency higher than 20,000 Hz are
called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Ultrasonic<o:p></o:p></p>
- B. <p class="MsoNormal">Infrasonic<o:p></o:p></p>
- C. <p class="MsoNormal">Audible<o:p></o:p></p>
- D. <p class="MsoNormal">Echo<o:p></o:p></p>
|
| 9 |
SI unit of electric potential is: |
- A. Watt
- B. Volt
- C. Coulomb
- D. Joule
|
| 10 |
A positive electric charge: |
- A. Attracts other positive charge
- B. Repels other positive charge
- C. Attracts a neutral particle
- D. Repels a neutral particle
|