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Current Electricity

Current Electricity
Two resistances Rl and Ri are connected in series across the voltage source where Rl > Ri. The largest drop will be across

Ri
Either Rl or Ri
None of them
Rl

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Current Electricity
The resistance of a conductor varies inversely as

Length
Temperature
Resistivity
Are of cross-section

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Current Electricity
Two lamps 100 W and 40 W are connected in series across 230 V. Which of the following statement is correct?

40 W lamp will glow brighter
Both lamps will glow equally bright
100 W lamp will glow brighter
40 W lamp will fuse

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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.

Resistor
Reactor
Inductor
Capacitor

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Current Electricity
Electric pressure is also called

Voltage
Resistance
Energy
Power

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Current Electricity
Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be

9 times
1/9 times
1/3 times
3 times

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