A. one watt
B. one joule
C. five joules
D. one joule second
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Related Mcqs:
- An open resistor, when checked with an ohm-meter reads_____________?
A. zero
B. infinite
C. high but within tolerance
D. low but not zero - An instrument which detects electric current is known as_____________?
A. voltmeter
B. rheostat
C. wattmeter
D. galvanometer - 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 - The property of a conductor due to which it passes current is called___________?
A. resistance
B. reluctance
C. conductance
D. inductance - Which is the best conductor of electricity _______________?
A. Iron
B. Silver
C. Copper
D. Carbon - 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 - 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 - When one leg of parallel circuit is opened out the total current will______________?
A. reduce
B. increase
C. decrease
D. become zero - Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be_________________?
A. 9 times
B. 1/9 times
C. 1/3 times
D. 3 times - All good conductors have high____________?
A. conductance
B. resistance
C. reluctance
D. thermal conductivity
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