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Electric Current and its Effects - Class VII Science Quiz

Class VII
Science
Electric Current and its Effects
14 questions
HARD

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Preview questions

1. What is the unit of electric current?

Volt · Watt · Ampere · Ohm

2. Which device is used to measure electric current?

Voltmeter · Ammeter · Galvanometer · Resistor

3. What is the effect of electric current that causes a wire to heat up?

Chemical effect · Magnetic effect · Heating effect · Mechanical effect

4. In a circuit, what is the role of a resistor?

Increase current · Decrease current · Store energy · Measure voltage

5. Which of the following materials is a good conductor of electricity?

Rubber · Wood · Copper · Glass

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