ICSE Class 10 Physics: Current Electricity

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Questions and Answers

What is the SI unit of electric current?

Ampere (correct)
Coulomb
Volt
Ohm

What is the effect of increasing the resistance in a circuit?

Causes the circuit to break
Does not affect the current
Decreases the current (correct)
Increases the current

What happens to the brightness of a bulb when more bulbs are connected in series to a battery?

Brightness fluctuates
Brightness increases
Brightness decreases (correct)
Brightness remains the same

Increasing the number of bulbs in series to a battery will decrease the overall brightness of the bulbs.

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The SI unit of electric current is Ampere (A).

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Increasing the resistance in a circuit will decrease the current flowing through the circuit.

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Flashcards

SI unit of electric current

The standard unit for measuring electric current, symbolized by 'A'.

Resistance's effect on current

Higher resistance leads to reduced current.

Series circuit's effect on bulbs

Adding more bulbs in series decreases bulb brightness.

Series bulb brightness

Adding more bulbs in series to a battery will decrease the brightness of the bulbs overall.

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Ampere (A)

The unit for electrical current.

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Resistance and current relation

Higher resistance leads to less current, it resists the flow of electrical current

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Study Notes

Electric Current and Resistance

The SI unit of electric current is Ampere (A).
Increasing the resistance in a circuit decreases the current flowing through the circuit.

Series Circuit

When more bulbs are connected in series to a battery, the overall brightness of the bulbs decreases.
The brightness of a bulb decreases as more bulbs are connected in series to a battery.

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Description

Test your knowledge of current electricity with questions about the SI unit of electric current, the effect of increasing resistance in a circuit, and the brightness of bulbs when connected in series to a battery.