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Current Electricity

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

Low
Very low
High
Any value

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Current Electricity
Conductivity is the reciprocal of

Resistance
None of the listed here
Current density
Resistivity

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Current Electricity
A 40 W bulb is connected in series with a room heater. If now 40 W bulb is replaced by 100 W bulb, the heater output will

Remains same
Increases
Decreases
Heater will burn out

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Current Electricity
Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as

2 : 5
5 : 2
25 : 4
4 : 25

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Current Electricity
The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other?

18 Q
48 Q
36 Q
64 Q

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Current Electricity
One Newton meter is same as

Five joules
One joule
One joule second
One watt

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MORE MCQ ON Current Electricity

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