| 1 |
A conductor of electric current is: |
- A. Wood
- B. Rubber
- C. Plastic
- D. Copper
|
| 2 |
Mathematical form of Ohm's law is: |
- A. V = IR
- B. V = I2R
- C. V = Qt
- D. V = IR2
|
| 3 |
<p class="MsoNormal">AND operation is represented by:<o:p></o:p></p> |
- A. <p class="MsoNormal">Dot (.)<o:p></o:p></p>
- B. <p class="MsoNormal">Addition (+)<o:p></o:p></p>
- C. <p class="MsoNormal">Division (<span style="font-family: Arial, sans-serif; color: rgb(34, 34, 34); background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">÷</span>)<o:p></o:p></p>
- D. <p class="MsoNormal">Minus (-)<o:p></o:p></p>
|
| 4 |
<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>
|
| 5 |
Which instrument is used to detect current? |
- A. Galvanometer
- B. Voltmeter
- C. Ammeter
- D. Electroscope
|
| 6 |
According to Ohm's law V =________ |
- A. I<sup>2</sup>R
- B. IR<sup>2</sup>
- C. IR
- D. I/R
|
| 7 |
The unit of resistance is: |
|
| 8 |
The S.I unit of electric current is: |
- A. Volt
- B. Ampere
- C. Coulomb
- D. Watt
|
| 9 |
Specific resistance of silver = ________ x 10<sup>-s</sup>Ohm-meter |
- A. 5.25
- B. 2.75
- C. 1.69
- D. 1.62
|
| 10 |
<p class="MsoNormal">J.J Thomson observed deflection of cathode rays in:<o:p></o:p></p> |
- A. <p class="MsoNormal">1895<o:p></o:p></p>
- B. <p class="MsoNormal">1896<o:p></o:p></p>
- C. <p class="MsoNormal">1897<o:p></o:p></p>
- D. <p class="MsoNormal">1998<o:p></o:p></p>
|