Out of the following which is not a poor conductor__________?
Out of the following which is not a poor conductor__________?
A. Cast iron
B. Copper
C. Carbon
D. Tungsten
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Electric current passing through the circuit produces_____________?
Electric current passing through the circuit produces_____________?A. magnetic effect
B. luminous effect
C. thermal effect
D. chemical effect
E. all above effectsWhich 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.
A substance whose molecules consist of dissimilar atoms is called____________?
A substance whose molecules consist of dissimilar atoms is called____________?
A. semi-conductor
B. super-conducto
C. compound
D. insulatorInternal resistance of ideal voltage source is ?
Internal resistance of ideal voltage source is ?
A. zero
B. infinite
C. finite
D. 100 ohmsInternal resistance of ideal voltage source is
74. Sparking occurs when a load is switched off because the circuit has high_________?
74. Sparking occurs when a load is switched off because the circuit has high_________?
A. resistance
B. inductance
C. capacitance
D. impedanceNichrome wire is an alloy of_____________?
Nichrome wire is an alloy of_____________?
A. lead and zinc
B. chromium and vanadium
C. nickel and chromium
D. copper and silver