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CURRENT ELECTRICITY

Current Electricity
Eureka has _______ temperature co-efficient of resistance.

Negative
None of the listed here
Positive
Almost zero

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Current Electricity
Insulators have _______ temperature co-efficient of resistance.

Zero
None of the listed here
Negative
Positive

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Current Electricity
The specific resistance of a metallic conductor ______ with rise in temperature.

None of the listed here
Increases
Decreases
Remains unchanged

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Current Electricity
The resistance of a straight conductor is independent of

Material
Cross-sectional area
Shape of cross-section
Temperature

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Current Electricity
Electric current is a

Number only
Scalar quantity
Vector quantity
Sometimes scalar and sometimes vector

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