All of the following are equivalent to watt except_____________?
All of the following are equivalent to watt except_____________?
A. (amperes) ohm
B. joules/seC.
C. amperes x volts
D. amperes/volt
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The filament of an electric bulb is made of______________?
The filament of an electric bulb is made of______________?
A. carbon
B. aluminium
C. tungsten
D. nickelWhich of the following statement is true both for a series and a parallel D. C. circuit?
Which of the following statement is true both for a series and a parallel D. C. circuit?
A. Elements have individual currents
B. Currents are additive
C. Voltages are additive
D. Power are additiveIf/, R and t are the current, resistance and time respectively, then according to Joule’s law heat produced will be proportional to_______________?
If/, R and t are the current, resistance and time respectively, then according to Joule’s law heat produced will be proportional to_______________?
A. I2Rt
B. I2Rf
C. I2R2t
D. I2R2t*Which of the following can have negative temperature coefficient _____________?
Which of the following can have negative temperature coefficient _____________?
A. Compounds of silver
B. Liquid metals
C. Metallic alloys
D. ElectrolytesA 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 particlesA closed switch has a resistance of_____________?
A closed switch has a resistance of_____________?
A. zero
B. about 50 ohms
C. about 500 ohms
D. infinity