| 1 |
<p class="MsoNormal">The point through which rays of light pass after reflection
from concave mirror is called principal:<o:p></o:p></p> |
- A. <p class="MsoNormal">Focus<o:p></o:p></p>
- B. <p class="MsoNormal">Circle<o:p></o:p></p>
- C. <p class="MsoNormal">Axis<o:p></o:p></p>
- D. <p class="MsoNormal">Radius<o:p></o:p></p>
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| 2 |
The current which changes its direction is called: |
- A. Current
- B. A.C.
- C. Conventional current
- D. D.C.
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| 3 |
What is the voltage across a 6Ω resister when 3A current passes through it? |
- A. 2V
- B. 9V
- C. 18V
- D. 36V
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| 4 |
The unit of power is _________ |
- A. Volt
- B. Watt
- C. Joule
- D. Coulomb
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| 5 |
<p class="MsoNormal">Which gate is used for safety alarm:<o:p></o:p></p> |
- A. <p class="MsoNormal">AND<o:p></o:p></p>
- B. <p class="MsoNormal">NANAD<o:p></o:p></p>
- C. <p class="MsoNormal">OR<o:p></o:p></p>
- D. <p class="MsoNormal">NOR<o:p></o:p></p>
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| 6 |
When resistance are connected in series the current passing through them is . |
- A. Different
- B. Zero
- C. The same
- D. None of these
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| 7 |
Which one is a safety device? |
- A. Switch
- B. Fuse
- C. Circuit breaker
- D. Both B and C
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| 8 |
In mathematical form of Ohm's law, "R" is: |
- A. Resistance
- B. Specific resistance
- C. Resistor
- D. Resistivity
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| 9 |
How Galvanometer is connected in circuit to detect current? |
- A. In Series
- B. In Parallel
- C. Fixed
- D. Variable
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| 10 |
<p class="MsoNormal">The sensation of sound persists in our brain for:<o:p></o:p></p> |
- A. <p class="MsoNormal">0.1 sec<o:p></o:p></p>
- B. <p class="MsoNormal">0.01 sec<o:p></o:p></p>
- C. <p class="MsoNormal">1 sec<o:p></o:p></p>
- D. <p class="MsoNormal">10 sec<o:p></o:p></p>
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