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Current Electricity

Current Electricity
All of the following are equivalent to watt except

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

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Current Electricity
A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is

6.4 A, 9.6 A
6.4 A, 6.9 A
4.6 A, 9.6 A
4.6 A, 6.9 A

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Current Electricity
Resistance of a carbon filament lamp _______ as the applied voltage increases.

Decreases
None of the listed here
Remains same
Increases

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Current Electricity
With rise in temperature the resistance of pure metals

Increases
Decreases
First increases and then decreases
Remains constant

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Current Electricity
Resistance of 220 V, 100 W lamp will be

48.4 Q
484 ft
4840 Q
4.84 Q

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Current Electricity
The resistance of conductor varies inversely as

Area of cross-section
Length
Resistivity
Temperature

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