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Current Electricity

Current Electricity
The resistance of a conductor varies inversely as

Resistivity
Length
Are of cross-section
Temperature

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Current Electricity
The maximum current rating for a 10 kΩ, 0.5 W resistor is

14.14 mA
7.07 mA
28.28 mA
0.707 mA

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Current Electricity
An electric filament bulb can be worked from

Battery supply only
AC supply only
DC supply only
All of the listed here

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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
One Newton meter is same as

One joule
One joule second
Five joules
One watt

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Current Electricity
Voltage dependent resistors are usually made from

Nichrome
Graphite
Silicon carbide
Charcoal

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