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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    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.

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