| 1 |
The process by which electrons are emitted by a hot metal surface is<div> known as:</div> |
- A. Boiling
- B. Evaportion
- C. Conduction
- D. Thermionic emission
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| 2 |
Analogue quantity is: |
- A. Time
- B. Pressure
- C. Distance
- D. All of these
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| 3 |
<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>
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| 4 |
Electronics is a branch of: |
- A. Mass
- B. Applied Physics
- C. Mechanics
- D. Nuclear Physics
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| 5 |
<p class="MsoNormal">The value of K in SI unit is:<o:p></o:p></p> |
- A. <p class="MsoNormal">9X10<sup>20</sup> Nm<sup>2</sup>C<sup>2</sup><o:p></o:p></p>
- B. <p class="MsoNormal">8X10<sup>9</sup>Nm<sup>2</sup>C<sup>2</sup><o:p></o:p></p>
- C. <p class="MsoNormal">9X10<sup>9</sup>Nm<sup>2</sup>C<sup>2</sup><o:p></o:p></p>
- D. <p class="MsoNormal">10X10<sup>-9</sup> Nm<sup>2</sup>C<sup>-2</sup><o:p></o:p></p>
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| 6 |
If Current flowing through switch then the output is expressed as: |
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| 7 |
<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>
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| 8 |
<p class="MsoNormal">Positive charge can be produced by:<o:p></o:p></p> |
- A. <p class="MsoNormal">Combing in hair<o:p></o:p></p>
- B. <p class="MsoNormal">Rubbing glass rod on silk<o:p></o:p></p>
- C. <p class="MsoNormal">By rubbing ebonite rod on wool<o:p></o:p></p>
- D. <p class="MsoNormal">By rubbing glass rod wool<o:p></o:p></p>
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| 9 |
<p class="MsoNormal">If the distance between the charged bodies is much greater
as compared to their sizes then the
bodies are considered is:<o:p></o:p></p> |
- A. <p class="MsoNormal">Positive charge<o:p></o:p></p>
- B. <p class="MsoNormal">Negative charge<o:p></o:p></p>
- C. <p class="MsoNormal">Point charge<o:p></o:p></p>
- D. <p class="MsoNormal">Zero charge<o:p></o:p></p>
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| 10 |
<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>
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