| 1 |
<p class="MsoNormal">Why household appliances should be connected in parallel
with the voltage source:<o:p></o:p></p> |
- A. <p class="MsoNormal">To increase the resistance of the circuit<o:p></o:p></p>
- B. <p class="MsoNormal">To decrease the resistance of the circuit<o:p></o:p></p>
- C. <p class="MsoNormal">To provide each
appliance the same voltage as the power source<o:p></o:p></p>
- D. <p class="MsoNormal">To provide each appliance the same current as the power
source<o:p></o:p></p>
|
| 2 |
<p class="MsoNormal">study of charges at rest is called:<o:p></o:p></p> |
- A. <p class="MsoNormal">acoustics<o:p></o:p></p>
- B. <p class="MsoNormal">electrostatics<o:p></o:p></p>
- C. <p class="MsoNormal">electronics<o:p></o:p></p>
- D. <p class="MsoNormal">electricity<o:p></o:p></p>
|
| 3 |
Which technology is used in mobile phone: |
- A. Heat
- B. Radio
- C. Light
- D. Laser
|
| 4 |
Which statement of the following is false for primary memory? |
- A. The base of primary memory is electronics
- B. This is a random access memory
- C. It gets lost when computer switches off
- D. It is built on laser technology
|
| 5 |
1 KB =______________ |
- A. 1022 bytes
- B. 1023 bytes
- C. 1024 bytes
- D. 1025 bytes
|
| 6 |
What is fitted in telephone receiver? |
- A. Electromagnet
- B. Diaphragm
- C. Both a and b
- D. None of these
|
| 7 |
The device which is used to convert sound waves into electrical signal is called: |
- A. Ear piece
- B. Microphone
- C. Transmission channel
- D. Receiver
|
| 8 |
<p class="MsoNormal">A capacitor stores 0.24 coulombs at 10 volts. It capacitance
is:<o:p></o:p></p> |
- A. <p class="MsoNormal">0.024F<o:p></o:p></p>
- B. <p class="MsoNormal">0.12F<o:p></o:p></p>
- C. <p class="MsoNormal">0.6F<o:p></o:p></p>
- D. <p class="MsoNormal">0.8F<o:p></o:p></p>
|
| 9 |
<p class="MsoNormal">Capacitors are mainly used for radio frequency tuning:<o:p></o:p></p> |
- A. <p class="MsoNormal">Paper capacitor<o:p></o:p></p>
- B. <p class="MsoNormal">Air capacitor<o:p></o:p></p>
- C. <p class="MsoNormal">Mica capacitor<o:p></o:p></p>
- D. <p class="MsoNormal">Electrolytic capacitor<o:p></o:p></p>
|
| 10 |
<p class="MsoNormal">which is a major cause of fires and explosions at many
places:<o:p></o:p></p> |
- A. <p class="MsoNormal">match sticks<o:p></o:p></p>
- B. <p class="MsoNormal">bombs<o:p></o:p></p>
- C. <p class="MsoNormal">static electricity<o:p></o:p></p>
- D. <p class="MsoNormal">magnetism<o:p></o:p></p>
|
