| 1 |
How Galvanometer is connected in circuit to detect current? |
- A. In Series
- B. In Parallel
- C. Fixed
- D. Variable
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| 2 |
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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| 3 |
The current which changes its direction is called: |
- A. Current
- B. A.C.
- C. Conventional current
- D. D.C.
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| 4 |
In mathematical form of Ohm's law, "R" is: |
- A. Resistance
- B. Specific resistance
- C. Resistor
- D. Resistivity
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| 5 |
<p class="MsoNormal">The diameter of spherical mirror is called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Curvature<o:p></o:p></p>
- B. <p class="MsoNormal">Aperture<o:p></o:p></p>
- C. <p class="MsoNormal">Sphere<o:p></o:p></p>
- D. <p class="MsoNormal">Both a and b<o:p></o:p></p>
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| 6 |
The current used in houses is: |
- A. A.C.
- B. Conventiona current
- C. Current
- D. D.C
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| 7 |
The resistance of voltmeter is: |
- A. zero
- B. low
- C. Very high
- D. 10Ω
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| 8 |
The unit of resistance is: |
|
| 9 |
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>
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| 10 |
<p class="MsoNormal">Electron gun has an electrode called for controlling the
flow of electrons in the beam:<o:p></o:p></p> |
- A. <p class="MsoNormal">Plate<o:p></o:p></p>
- B. <p class="MsoNormal">Grid<o:p></o:p></p>
- C. <p class="MsoNormal">Screen<o:p></o:p></p>
- D. <p class="MsoNormal">Filament<o:p></o:p></p>
|