Electric pressure is also called________?
Electric pressure is also called________?
A. resistance
B. power
C. voltage
D. energy
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If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes______________?
If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes______________?
A. 0.4 ohm
B. 0.6 ohm
C. 0.8 ohm
D. 1.0 ohm1 angstrom is equal to______________?
1 angstrom is equal to______________?
A. 10-8 mm
B. 10″6 cm
C. 10″10 m
D. 10~14 mThe voltage induced in an inductor is represented as,
The voltage induced in an inductor is represented as,
A. product of its inductance and current through it.
B. ratio of its inductance to the current through it.
C. ratio of the current through it to its inductance.
D. product of its inductance and rate of change of current through it.The instantaneous voltage across the inductor is expressed as the product of inductance and a rate of change of current through it as it doesn’t allow any certain change of current through it. Voltage induced in an inductor is written as
A closed switch has a resistance of_____________?
A closed switch has a resistance of_____________?
A. zero
B. about 50 ohms
C. about 500 ohms
D. infinityIf the efficiency of a machine is to be high, what should be low __________?
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 inputWhich of the following statement is true________________?
Which of the following statement is true________________?
A. A galvanometer with low resistance in parallel is a voltmeter
B. A galvanometer with high resistance in parallel is a voltmeter
C. A galvanometer with low resistance in series is an ammeter
D. A galvanometer with high resistance in series is an ammeter