A. Semiconductor
B. Conductor
C. Insulator
D. None of the above
Submitted by: Naveed Tahir
Related Mcqs:
- With increase in temperature the electrical conductivity of intrinsic semi conductor___________________?
A. Decreases
B. Increases
C. Remains same
D. First increases then decreases - With the increase of pressure, the boiling point of any substance:
A. Decreases
B. Increases
C. Remains same
D. Becomes ZeroSubmitted by: Naveed Tahir
- What is unit of conductivity?
A. Ohm
B. Watt
C. mho
D. None of theseSubmitted by: Asif Ali
- Increase in velocity of sound in the air for 1°C rise in temperature is_________________?
A. 1.61 ms-1
B. 61.0 ms-1
C. 0.61 ms-1
D. 2.00 ms-1 - If the volume of a gas is held constant and we increase its temperature then_______________?
A. its pressure is constant
B. its pressure rises
C. its pressure falls
D. any of above - An immersion heater of 400 watts kept on for 5 hours will consume electrical power of __________________?
A. 2KWh
B. 20KWh
C. 6KWh
D. 12KWh - 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 - Electrical energy is measured in___________________?
A. watt
B. horse power
C. kilo watt
D. kilowatt hour - ________________ cells converts solar energy into electrical energy?
A. rotory
B. photovoltaic
C. galvanic
D. non of these - 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
