| 1 |
When a current carrying conductor is placed in magnetic field at right angle to it. The direction of force acting upon it is: |
- A. The same as direction of field
- B. Opposite the direction of field
- C. Makes an angle of 45<sup>o</sup>with the current
- D. At right angle to both the field and the current.
|
| 2 |
The true ratio of a transformer is 10. It means: |
- A. Vs = 10Vp
- B. Ns = Np/10
- C. Ns = 10NP
- D. VS= Vp/10
|
| 3 |
The presence of a magnetic field can be detected by a |
- A. small mass
- B. Stationary positive charge
- C. Stationary negative charge
- D. Magnetic compass
|
| 4 |
Which device is used to increases / decreases A.C Voltage? |
- A. Electric motor
- B. Transformer
- C. A.C Generator
- D. Solenoid
|
| 5 |
<p class="MsoNormal">In SI the unit of
charge is:<o:p></o:p></p> |
- A. <p class="MsoNormal">Joule<o:p></o:p></p>
- B. <p class="MsoNormal">Volt<o:p></o:p></p>
- C. <p class="MsoNormal">Coulomb<o:p></o:p></p>
- D. <p class="MsoNormal">Watt<o:p></o:p></p>
|
| 6 |
<p class="MsoNormal">In compound microscope, the objective have focal length than
eye-piece:<o:p></o:p></p> |
- A. <p class="MsoNormal">Smaller<o:p></o:p></p>
- B. <p class="MsoNormal">Larger<o:p></o:p></p>
- C. <p class="MsoNormal">Equal<o:p></o:p></p>
- D. <p class="MsoNormal">Equal and larger<o:p></o:p></p>
|
| 7 |
<p class="MsoNormal">The cathode ray oscilloscope consists of main parts:<o:p></o:p></p> |
- A. <p class="MsoNormal">Two<o:p></o:p></p>
- B. <p class="MsoNormal">Three<o:p></o:p></p>
- C. <p class="MsoNormal">Four<o:p></o:p></p>
- D. <p class="MsoNormal">Five<o:p></o:p></p>
|
| 8 |
When an electric current passes through a conductor, which field is produced around it? |
- A. Electric field
- B. Magnetic field
- C. Gravitational field
- D. Electrostatic field
|
| 9 |
<p class="MsoNormal">Spherical mirrors are used in:<o:p></o:p></p> |
- A. <p class="MsoNormal">Medical<o:p></o:p></p>
- B. <p class="MsoNormal">Search light<o:p></o:p></p>
- C. <p class="MsoNormal">Microscope<o:p></o:p></p>
- D. <p class="MsoNormal">All of these<o:p></o:p></p>
|
| 10 |
<p class="MsoNormal">According to coulomb’s law, what happens to the attraction
of two oppositely charged objects as their distance of separation increases:<o:p></o:p></p> |
- A. <p class="MsoNormal">Increases<o:p></o:p></p>
- B. <p class="MsoNormal">Decreases<o:p></o:p></p>
- C. <p class="MsoNormal">Remains unchanged<o:p></o:p></p>
- D. <p class="MsoNormal">Cannot be determined<o:p></o:p></p>
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