A field of force can exist only between_____________?
A field of force can exist only between_____________?
A. two molecules
B. two ions
C. two atoms
D. two metal particles
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The property of a conductor due to which it passes current is called___________?
The property of a conductor due to which it passes current is called___________?
A. resistance
B. reluctance
C. conductance
D. inductanceA light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is___________?
A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is___________?
A. 400 Q
B. 600 Q
C. 800 Q
D. 1000 QWhich quantity consists of a unit 1KWh ?
Which quantity consists of a unit 1KWh ?
A. Energy
B. Time
C. Power
D. Charge1 kWh is the amount of energy used by a 1 kW (1000 watt) resistance for 1 hour. Energy = Power × Time.
For testing appliances, the wattage of test lamp should be_____________?
For testing appliances, the wattage of test lamp should be_____________?
A. very low
B. low
C. high
D. any valueThe thickness of insulation provided on the conductor depends on_____________?
The thickness of insulation provided on the conductor depends on_____________?
A. the magnitude of voltage on the conductor
B. the magnitude of current flowing through it
C. both A. and (b)
D. none of the aboveThe four bulbs of 40 W each are connected in series swift a battery across them, which of the following statement is true_______________?
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