A field of force can exist only between_____________?

Related Mcqs:

1. How many coulombs of charge flow through a circuit carrying a current of 10 A in 1 minute?

   A. 10
   B. 60
   C. 600
   D. 1200

2. The property of a conductor due to which it passes current is called___________?

   A. resistance
   B. reluctance
   C. conductance
   D. inductance

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

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

4. Which is the best conductor of electricity _______________?

   A. Iron
   B. Silver
   C. Copper
   D. Carbon

5. Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open_________________?

   A. there will be heavy current in the main line
   B. rest of the two bulbs will not light
   C. all three bulbs will light
   D. the other two bulbs will light

6. If the efficiency of a machine is to be high, what should be low __________?

   A. Input power
   B. Losses
   C. True component of power
   D. kWh consumed
   E. Ratio of output to input

7. When one leg of parallel circuit is opened out the total current will______________?

   A. reduce
   B. increase
   C. decrease
   D. become zero

8. 74. Sparking occurs when a load is switched off because the circuit has high_________?

   A. resistance
   B. inductance
   C. capacitance
   D. impedance

9. Which method can be used for absolute measurement of resistances _______________?

   A. Lorentz method
   B. Releigh method
   C. Ohm’s law method
   D. Wheatstone bridge method

   Updated by: Inam

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