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Current Electricity

Current Electricity
Insulators have _______ temperature co-efficient of resistance.

Zero
Positive
Negative
None of the listed here

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Current Electricity
In case of liquids, ohm's law is

None of the listed here
There is no relation between current and p. d
Partially obeyed
Fully obeyed

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Current Electricity
All good conductors have high

Reluctance
Conductance
Resistance
Thermal conductivity

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Current Electricity
All of the following are equivalent to watt except

Joules/sec.
(Amperes) ohm
Amperes/volt
Amperes × volts

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Current Electricity
Three resistance of 10 ohms, 15 ohms, and 30 ohm are connected in parallel. The total resistance of the combination is

10 ohms
5 ohms
55 ohms
15 ohms

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Current Electricity
Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current.

Capacitor
Inductor
Resistor
Reactor

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