CURRENT ELECTRICITY QUIZ

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

64 Q

36 Q

48 Q

TRUE ANSWER : ?
YOUR ANSWER : ?

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

40 W lamp will fuse

40 W lamp will glow brighter

100 W lamp will glow brighter

Both lamps will glow equally bright

TRUE ANSWER : ?
YOUR ANSWER : ?

For testing appliances, the wattage of test lamp should be

Very low

Any value

Low

High

TRUE ANSWER : ?
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All good conductors have high

Thermal conductivity

Reluctance

Conductance

Resistance

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

200 V

100 V

50 V

150 V

TRUE ANSWER : ?
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The hot resistance of the bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is

Positive

Zero

About 2 ohms per degree

Negative

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The minimum charge on an ion is

None of these

Equal to the charge of the number of electrons in an atom (#) zero

Equal to the charge of an electron

Equal to the atomic number of the atom

TRUE ANSWER : ?
YOUR ANSWER : ?

One Newton meter is same as

One watt

Five joules

One joule second

One joule

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The insulation on a current carrying conductor is provided

To prevent shock

Both of the listed here

None of above factors

To prevent leakage of current

TRUE ANSWER : ?
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Which of the following is the best material for making connecting wires?

Constant

Copper

Nichrome

Manganin

TRUE ANSWER : ?
YOUR ANSWER : ?

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