Electrical energy is measured in___________________?

Related Mcqs:

1. ________________ cells converts solar energy into electrical energy?

   A. rotory
   B. photovoltaic
   C. galvanic
   D. non of these

2. Electrical energy is converted to heat at the rate of___________________?

   A. IRt
   B. I2R
   C. I2Rt
   D. VIt

3. The velocity of sound is greatest in___________________?

   A. Water
   B. air
   C. copper
   D. ammonia

4. An immersion heater of 400 watts kept on for 5 hours will consume electrical power of __________________?

   A. 2KWh
   B. 20KWh
   C. 6KWh
   D. 12KWh

5. All electrical appliances are connected in parallel to each other between the main line and neutral wire to get ______________________?

   A. same current
   B. same current and potential difference
   C. different current but same potential difference
   D. different current and potential differences

6. Geothermal energy is a _______________________ source of energy?

   A. non-renewable
   B. stable
   C. renewable
   D. none of the above

7. In normal state of energy the incident high energy photons will be______________?

   A. Stimulated
   B. Absorbed
   C. Cause X-ray emission
   D. Cause laser production

8. With increase in temperature the electrical conductivity of intrinsic semi conductor___________________?

   A. Decreases
   B. Increases
   C. Remains same
   D. First increases then decreases

9. When we excite some atoms by heat collision or electrical discharge they will________________?

   A. radiate electromagnetic energy with a continuous distribution of wavelength
   B. absorb particular wavelengths when white light is incident on them
   C. radiate electromagnetic energy of discrete characteristic wavelength
   D. emit either invisible or visible light

10. If electrical conductivity increases with the increase of temperature of a substance, then it is a:

    A. Semiconductor
    B. Conductor
    C. Insulator
    D. None of the above

    Submitted by: Naveed Tahir