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Current Electricity
Ohm's law is not applicable to
High voltage circuits
Carbon resistors
Circuits with low current densities
Vaccum tubes
High voltage circuits
Carbon resistors
Circuits with low current densities
Vaccum tubes
Answer
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Related Question
Current Electricity
In a series circuit with unequal resistances
The highest resistance has the most of the current through it
The highest resistance has the highest voltage drop
The lowest resistance has the highest current
The lowest resistance has the highest voltage drop
The highest resistance has the most of the current through it
The highest resistance has the highest voltage drop
The lowest resistance has the highest current
The lowest resistance has the highest voltage drop
Answer
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Current Electricity
With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals
20 W
40 W
60 W
10 W
20 W
40 W
60 W
10 W
Answer
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Current Electricity
The specific resistance of a metallic conductor ______ with rise in temperature.
Decreases
Remains unchanged
None of the listed here
Increases
Decreases
Remains unchanged
None of the listed here
Increases
Answer
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Current Electricity
Are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators.
Thermistor
Varistors
Semiconductors
Variable resistors
Thermistor
Varistors
Semiconductors
Variable resistors
Answer
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Current Electricity
In a circuit a 33 Q resistor carries a current of 2 A. The voltage across the resistor is
80 V
66 V
132 V
33 V
80 V
66 V
132 V
33 V
Answer
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