Electric pressure is also called________?

Related Mcqs:

1. An instrument which detects electric current is known as_____________?

   A. voltmeter
   B. rheostat
   C. wattmeter
   D. galvanometer

2. The filament of an electric bulb is made of______________?

   A. carbon
   B. aluminium
   C. tungsten
   D. nickel

3. In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes, using same supply mains______________?

   A. length of heating element should be decreased
   B. length of heating element should be increased
   C. length of heating element has no effect on heating if water
   D. none of the above

4. An electric filament bulb can be worked from____________?

   A. D. C. supply only
   B. A. C. supply only
   C. Battery supply only
   D. All above

5. Electric current passing through the circuit produces_____________?

   A. magnetic effect
   B. luminous effect
   C. thermal effect
   D. chemical effect
   E. all above effects

6. When electric current passes through a metallic conductor, its temperature rises. This is due to__________?

   A. collisions between conduction electrons and atoms
   B. the release of conduction electrons from parent atoms
   C. mutual collisions between metal atoms
   D. mutual collisions between conducting electrons

7. When electric current passes through a bucket full of water, lot of bubbling is observeD. This suggests that the type of supply is____________?

   A. A. C.
   B. D. C.
   C. any of above two
   D. none of the above

8. For which of the following ‘ampere second’ could be the unit ?

   A. Reluctance
   B. Charge
   C. Power
   D. Energy

9. The four bulbs of 40 W each are connected in series swift a battery across them, which of the following statement is true_______________?

   A. The current through each bulb in same
   B. The voltage across each bulb is not same
   C. The power dissipation in each bulb is not same
   D. None of the above

10. are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators______________?

    A. Varistors
    B. Thermistor
    C. Semi-conductors
    D. Variable resistors