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Current Electricity

Current Electricity
No current flow between two charged bodies if they have same

Potential
None of the listed here
Charge
Capacity

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Current Electricity
The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is

1.5
0.6
0.5
1

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Current Electricity
Voltage dependent resistors are used

To suppress surges
As heating elements
As current stabilizers
For inductive circuits

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Current Electricity
A closed switch has a resistance of

Zero
About 50 ohms
About 500 ohms
Infinity

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

0.707 mA
28.28 mA
14.14 mA
7.07 mA

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Current Electricity
A thermistor has

Variable temperature coefficient
Positive temperature coefficient
Zero temperature coefficient
Negative temperature coefficient

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