| 1 |
<p class="MsoNormal">1 bel=<o:p></o:p></p> |
- A. <p class="MsoNormal">0.1 dB<o:p></o:p></p>
- B. <p class="MsoNormal">10 dB<o:p></o:p></p>
- C. <p class="MsoNormal">100 dB<o:p></o:p></p>
- D. <p class="MsoNormal">0.01 dB<o:p></o:p></p>
|
| 2 |
One coulomb is equal to charge of ________ electrons. |
- A. 6.25 x 10<sup>-19</sup>
- B. 6.25 x 10<sup>19</sup>
- C. 6.25 x 10<sup>18</sup>
- D. 6.25 x 10<sup>-18</sup>
|
| 3 |
Who developed the 1st practical electric battery: |
- A. Alessandro volta
- B. Faraday
- C. Newton
- D. None of these
|
| 4 |
Electric potential is a quantity: |
- A. Scalar
- B. Vector
- C. Base
- D. All
|
| 5 |
SI unit of electric potential is: |
- A. Watt
- B. Volt
- C. Coulomb
- D. Joule
|
| 6 |
Unlike charges always: |
- A. Repel each other
- B. Attract each other
- C. Sometimes repel and attract each other
- D. Both A and B
|
| 7 |
To hear echoes, the minimum distance of the obstacle from source of sound should be: |
- A. 10m
- B. 15m
- C. 17m
- D. 20m
|
| 8 |
<p class="MsoNormal">X=A.B. This equation is used for which operation:<o:p></o:p></p> |
- A. <p class="MsoNormal">AND<o:p></o:p></p>
- B. <p class="MsoNormal">OR<o:p></o:p></p>
- C. <p class="MsoNormal">NOT<o:p></o:p></p>
- D. <p class="MsoNormal">NAND<o:p></o:p></p>
|
| 9 |
<p class="MsoNormal">Which frequency is used by elephants to communicate with
each other:<o:p></o:p></p> |
- A. <p class="MsoNormal">Zero frequency<o:p></o:p></p>
- B. <p class="MsoNormal">Low frequency<o:p></o:p></p>
- C. <p class="MsoNormal">Medium frequency<o:p></o:p></p>
- D. <p class="MsoNormal">High frequency<o:p></o:p></p>
|
| 10 |
1 Pico Farad is equal to: |
- A. 10<sup>-9</sup>F
- B. 10<sup>-12</sup>F
- C. 10<sup>12</sup>F
- D. 10<sup>-6</sup>F
|
