Heating element of an electric heater is made up of___________?

Related Mcqs:

1. If the length of a heater coil is reduced by 10% of its original length, then Power consumed by heater will?

   A. Increase over 10% B. Decrease by 10% C. Decrease by 0.5% D. Increase by 0.5% Submitted by: Mansoor Ul Haque...

2. The gas heater gives us heat by __________?

   A. Radiation B. Conduction C. Convection D. Environmental pressure Submitted by: Mansoor Ahmed Suhag...

3. The increasing vapor pressure caused by heating a liquid is due to___________?

   A. increase inter-molecular interactions B. increasing potential energy of molecules C. increasing kinetic energy of molecules D. decreasing surface tension Submitted by: Mansoor Ul Haque...

4. Which Vitamin gets destroyed on heating?

   A. B B. E C. K D. C Submitted by: WIQAR AHMAD...

5. The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________?

   A. Conduction of heat upward from a hot surface B. Convection from a hot surface C. Absorption of infrared energy that has been radiated from the surface D. Heat energy from the earth’s interior Submitted by: Mansoor Ul Haque...

6. Coke is made by heating coal in the absence of air at__________?

   A. 700 °C B. 900 °C C. 1300 °C D. 1700 °C Submitted by: Ashfaque Ali Khoso...

7. A device that converts mechanical energy into electric energy is called_______?

   A. Motor. B. Transformer. C. Coil. D. Generator....

8. Who discovered the law of attraction and repulsion in electric charges?

   A. Newton B. Gullelio C. Coulumb D. Einstein Submitted by: Mansoor Ahmed Suhag...

9. ______ is the “Work done in moving a unit charge between two points in an electric circuit”?

   A. Potential difference B. Current C. Power D. Resistence Submitted by: Malik Asghar Hussain...

10. Which of the following are not deflected by electric and magnetic fields ?

    A. Alpha rays B. Beta rays C. Gamma rays D. None of these Submitted by: Aamir Balouch...