A. Elements have individual currents
B. Currents are additive
C. Voltages are additive
D. Power are additive
0
Which of the following materials has a negative temperature co-efficient of resistance?
0
Ohm’s law is not applicable to____________?
A. Copper
B. Aluminum
C. Carbon
D. Brass
0
Which is the best conductor of electricity _______________?
A. vacuum tubes
B. carbon resistors
C. high voltage circuits
D. circuits with low current densities
0
For which of the following ‘ampere second’ could be the unit ?
A. Iron
B. Silver
C. Copper
D. Carbon
0
All of the following are equivalent to watt except_____________?
A. Reluctance
B. Charge
C. Power
D. Energy
1
A resistance having rating 10 ohms, 10 W is likely to be a__________?
A. (amperes) ohm
B. joules/seC.
C. amperes x volts
D. amperes/volt
0
Which one of the following does not have negative temperature co-efficient ____________?
A. metallic resistor
B. carbon resistor
C. wire wound resistor
D. variable resistor
0
Varistors are______________?
A. Aluminium
B. Paper
C. Rubber
D. Mica
0
Insulating materials have the function of______________?
A. insulators
B. non-linear resistors
C. carbon resistors
D. resistors with zero temperature coefficient
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