| 1 |
For the emission of electrons from the tungsten filament the values of current and voltage are taken as: |
- A. 0.1 A and 2V
- B. 0.2 A and 4V
- C. 0.3A and 6V
- D. 0.4A and 8V
|
| 2 |
A and B are the two inputs of a NOR gate. Its output would be 1 when: |
- A. A = 1, B = 1
- B. A = 0 , B = 1
- C. A = 1, B = 0
- D. A = 0 , B = 0
|
| 3 |
<p class="MsoNormal">If we double the distance between two charges, then force
becomes:<o:p></o:p></p> |
- A. <p class="MsoNormal">4-times<o:p></o:p></p>
- B. <p class="MsoNormal">¼ th<o:p></o:p></p>
- C. <p class="MsoNormal">Double<o:p></o:p></p>
- D. <p class="MsoNormal">Half<o:p></o:p></p>
|
| 4 |
<p class="MsoNormal">1 Nano farad is equal to:<o:p></o:p></p> |
- A. <p class="MsoNormal">1X10<sup>-12</sup>F<o:p></o:p></p>
- B. <p class="MsoNormal">1X10<sup>9</sup>F<o:p></o:p></p>
- C. <p class="MsoNormal">1X10<sup>-9</sup>F<o:p></o:p></p>
- D. <p class="MsoNormal">1X10<sup>-6</sup>F<o:p></o:p></p>
|
| 5 |
<p class="MsoNormal">When a positive charge of 2 coulombs is placed at a point in
an electric field, it experiences a force of 6N. The intensity of electric
field at this point is:<o:p></o:p></p> |
- A. <p class="MsoNormal">6 NC<sup>-1</sup><o:p></o:p></p>
- B. <p class="MsoNormal">3 NC<sup>-1</sup><o:p></o:p></p>
- C. <p class="MsoNormal">12 NC<sup>-1</sup><o:p></o:p></p>
- D. <p class="MsoNormal">1.5 NC<sup>-1</sup><o:p></o:p></p>
|
| 6 |
<p class="MsoNormal">1 Pico farad is equal to:<o:p></o:p></p> |
- A. <p class="MsoNormal">10<sup>-9</sup>F<o:p></o:p></p>
- B. <p class="MsoNormal">10<sup>12</sup>F<o:p></o:p></p>
- C. <p class="MsoNormal">10<sup>-12</sup>F<o:p></o:p></p>
- D. <p class="MsoNormal">10<sup>-6</sup>F<o:p></o:p></p>
|
| 7 |
<p class="MsoNormal">In variable capacitor, dielectric medium is:<o:p></o:p></p> |
- A. <p class="MsoNormal">Paper<o:p></o:p></p>
- B. <p class="MsoNormal">Air<o:p></o:p></p>
- C. <p class="MsoNormal">Mica<o:p></o:p></p>
- D. <p class="MsoNormal">Ceramic<o:p></o:p></p>
|
| 8 |
The output of OR gate would be '0' When: |
- A. Both of its inputs are zero
- B. One of its two inputs is zero
- C. Both of its inputs ar 1
- D. Any one of its inputs is 1
|
| 9 |
The emission of electron from the surface of hot metal is called: |
- A. Ionization
- B. Conduction
- C. Thermionic emission
- D. Convection
|
| 10 |
If A input is 1 and B is zero, then in AND operation output will be: |
- A. 0
- B. 0.1
- C. 1
- D. None of these
|
