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

Related Mcqs:

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

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

2. With the increase of pressure, the boiling point of any substance:

   A. Decreases B. Increases C. Remains same D. Becomes Zero Submitted by: Naveed Tahir...

3. What is unit of conductivity?

   A. Ohm B. Watt C. mho D. None of these Submitted by: Asif Ali...

4. 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...

5. 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...

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

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

7. 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...

8. Electrical energy is measured in___________________?

   A. watt B. horse power C. kilo watt D. kilowatt hour...

9. ________________ cells converts solar energy into electrical energy?

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

10. 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...