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Current Electricity
Sparking occurs when a load is switched off because the circuit has high
Impedance
Inductance
Resistance
Capacitance
Impedance
Inductance
Resistance
Capacitance
Answer
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Related Question
Current Electricity
Two lamps 100 W and 40 W are connected in series across 230 V. Which of the following statement is correct?
Both lamps will glow equally bright
40 W lamp will glow brighter
100 W lamp will glow brighter
40 W lamp will fuse
Both lamps will glow equally bright
40 W lamp will glow brighter
100 W lamp will glow brighter
40 W lamp will fuse
Answer
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Current Electricity
In which of the following substances the resistance decreases with increase in temperature?
Carbon
Silver
Constantan
Copper
Carbon
Silver
Constantan
Copper
Answer
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Current Electricity
Ohm's law is not applicable to
Carbon resistors
High voltage circuits
Circuits with low current densities
Vaccum tubes
Carbon resistors
High voltage circuits
Circuits with low current densities
Vaccum tubes
Answer
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Current Electricity
Electric current is a
Vector quantity
Scalar quantity
Sometimes scalar and sometimes vector
Number only
Vector quantity
Scalar quantity
Sometimes scalar and sometimes vector
Number only
Answer
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Current Electricity
The substances which have a large number of free electrons and offer a low resistance are called
Semi-conductors
Inductors
Conductors
Insulators
Semi-conductors
Inductors
Conductors
Insulators
Answer
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