1 |
What is the power rating of a lamp connected to a 12 v source when it carries 2.5 A? |
- A. 4.8 W
- B. 14.5 W
- C. 30 W
- D. 60 W
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2 |
In mathematical form of Ohm's law, "R" is: |
- A. Resistance
- B. Specific resistance
- C. Resistor
- D. Resistivity
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3 |
The S.I unit of potential difference is: |
- A. Ampere
- B. Coulomb
- C. Volt
- D. Watt
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4 |
<p class="MsoNormal">Which of the following quantities is not change during
refraction of light:<o:p></o:p></p> |
- A. <p class="MsoNormal">Its direction<o:p></o:p></p>
- B. <p class="MsoNormal">Its speed<o:p></o:p></p>
- C. <p class="MsoNormal">Its frequency<o:p></o:p></p>
- D. <p class="MsoNormal">Its wavelength<o:p></o:p></p>
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5 |
<p class="MsoNormal">The mirror whose outer surface is reflecting is called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Concave mirror<o:p></o:p></p>
- B. <p class="MsoNormal">Convex mirror<o:p></o:p></p>
- C. <p class="MsoNormal">Mirror<o:p></o:p></p>
- D. <p class="MsoNormal">Lens<o:p></o:p></p>
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6 |
The S.I unit of electric current is: |
- A. Volt
- B. Ampere
- C. Coulomb
- D. Watt
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7 |
If we double both the current and the voltage in a circuit while keeping its resistance constant, the power. |
- A. remains unchanged
- B. halves
- C. doubles
- D. four time
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8 |
The combined resistance of two identical resistors, connected in series is 8Ω. Their combined resistance in a parallel arrangement will be: |
- A. 2Ω<p class="MsoNormal"><!--[endif]--><span style="font-size:14.0pt;
line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;
mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"><o:p></o:p></span></p>
- B. 4Ω
- C. 8Ω
- D. 12Ω
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9 |
<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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10 |
<p class="MsoNormal">Which combination forms NAND gate:<o:p></o:p></p> |
- A. <p class="MsoNormal">AND & OR<o:p></o:p></p>
- B. <p class="MsoNormal">AND & NOT<o:p></o:p></p>
- C. <p class="MsoNormal">NOT & OR<o:p></o:p></p>
- D. <p class="MsoNormal">NAND & NOT<o:p></o:p></p>
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