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Current Electricity

Current Electricity
Which of the following quantities remain the same in all parts of a series circuit?

Power
Current
Voltage
Resistance

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Current Electricity
For testing appliances, the wattage of test lamp should be

Any value
Very low
High
Low

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Current Electricity
What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω?

50 V
200 V
150 V
100 V

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

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

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Current Electricity
An electrical lamp coonsumes 100 W of power. If the supply voltage is 220 V the energy consumed in 30 minutes is

0.005 kWh
5 kWh
0.05 kWh
5 kWh

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Current Electricity
Which of the following statement is true both for a series and a parallel D.C. circuit?

Elements have individual currents
Power are additive
Voltages are additive
Currents are additive

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