| 1 |
<p class="MsoNormal">If a neutral body is brought near to the electroscope its
leaves:<o:p></o:p></p> |
- A. <p class="MsoNormal">Diverge<o:p></o:p></p>
- B. <p class="MsoNormal">Contract<o:p></o:p></p>
- C. <p class="MsoNormal">Shut<o:p></o:p></p>
- D. <p class="MsoNormal">Remain in normal position<o:p></o:p></p>
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| 2 |
Which device is used to show the change in the value of current or electrical potential as a graph? |
- A. Cathode ray tube
- B. Electron gun
- C. Oscilloscope
- D. Transformer
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| 3 |
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
|
| 4 |
<p class="MsoNormal">What does a switch do:<o:p></o:p></p> |
- A. <p class="MsoNormal">Oppose the current<o:p></o:p></p>
- B. <p class="MsoNormal">Open and close the circuit<o:p></o:p></p>
- C. <p class="MsoNormal">Store energy<o:p></o:p></p>
- D. <p class="MsoNormal">Provide voltage<o:p></o:p></p>
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| 5 |
<p class="MsoNormal">In electrostatic all charges are in:<o:p></o:p></p> |
- A. <p class="MsoNormal">The same direction<o:p></o:p></p>
- B. <p class="MsoNormal">Opposite direction<o:p></o:p></p>
- C. <p class="MsoNormal">Motion<o:p></o:p></p>
- D. <p class="MsoNormal">Static state<o:p></o:p></p>
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| 6 |
If X = A,B, then X is 1 when: |
- A. A and B are 1
- B. A or B is 0
- C. A is 0 and B is 1
- D. A is 1 and B is 0
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| 7 |
<p class="MsoNormal">The unit of electrical energy is:<o:p></o:p></p> |
- A. <p class="MsoNormal">Joule<o:p></o:p></p>
- B. <p class="MsoNormal">Watt<o:p></o:p></p>
- C. <p class="MsoNormal">Volt<o:p></o:p></p>
- D. <p class="MsoNormal">Electron volt(eV)<o:p></o:p></p>
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| 8 |
Boolean expression for AND operation is: |
- A. X = A̅
- B. X = A + B
- C. X = A . B
- D. X = A̅B̅
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| 9 |
The output of a NAND gate is 0 when |
- A. Both of its inputs are 0
- B. Both of its inputs are 1
- C. any of its inputs is 0
- D. any of its inputs is 1
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| 10 |
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
|