| 1 |
Specific resistance of copper is ____________ x 10<sup>-8</sup>Ohm-meter |
- A. 1.62
- B. 1.69
- C. 5.25
- D. 2.75
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| 2 |
<p class="MsoNormal">We can distinguish between the notes of a piano and flute
due to ………… of sound.<o:p></o:p></p> |
- A. <p class="MsoNormal">Loudness<o:p></o:p></p>
- B. <p class="MsoNormal">Pitch<o:p></o:p></p>
- C. <p class="MsoNormal">Quality<o:p></o:p></p>
- D. <p class="MsoNormal">Intensity<o:p></o:p></p>
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| 3 |
<p class="MsoNormal">In OR operation inputs are connected as:<o:p></o:p></p> |
- A. <p class="MsoNormal">Series<o:p></o:p></p>
- B. <p class="MsoNormal">Parallel<o:p></o:p></p>
- C. <p class="MsoNormal">Both series or parallel<o:p></o:p></p>
- D. <p class="MsoNormal">None of these<o:p></o:p></p>
|
| 4 |
<p class="MsoNormal">The more negative potential of grid, the more electrons will
be:<o:p></o:p></p> |
- A. <p class="MsoNormal">Attracted<o:p></o:p></p>
- B. <p class="MsoNormal">Repelled<o:p></o:p></p>
- C. <p class="MsoNormal">Attracted as well as repelled<o:p></o:p></p>
- D. <p class="MsoNormal">Neither attracted nor repelled<o:p></o:p></p>
|
| 5 |
<p class="MsoNormal">The characteristics of sound by which we can distinguish
between two sounds of same loudness and pitch is called.<o:p></o:p></p> |
- A. <p class="MsoNormal">Intensity<o:p></o:p></p>
- B. <p class="MsoNormal">Quality<o:p></o:p></p>
- C. <p class="MsoNormal">Loudness<o:p></o:p></p>
- D. <p class="MsoNormal">Pitch<o:p></o:p></p>
|
| 6 |
The unit of resistance is: |
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| 7 |
<p class="MsoNormal">An object is placed at the Centre of curvature of a concave
mirror. The image produced by the mirror is located:<o:p></o:p></p> |
- A. <p class="MsoNormal">Out beyond the centre of curvature<o:p></o:p></p>
- B. <p class="MsoNormal">At the centre of curvature<o:p></o:p></p>
- C. <p class="MsoNormal">Between the centre of curvature and the focal point<o:p></o:p></p>
- D. <p class="MsoNormal">At the focal point<o:p></o:p></p>
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| 8 |
The unit of (ρ) in formula R=ρ.L/a is______________. |
- A. Ω
- B. Ω-m
- C. Ω-m<sup>2</sup>
- D. Ω-m<sup>-2</sup>
|
| 9 |
The property of substance, which opposes the flow of current through it is called. |
- A. Resistance
- B. Reactance
- C. Resistivity
- D. None of these
|
| 10 |
Which wire has lowest resistance? |
- A. Thick wire
- B. Thin wire
- C. Very thin wire
- D. All
|