Electricity Numericals Quiz for Class 10
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Questions and Answers

What is the formula to calculate electrical power?

  • P = I^2R (correct)
  • P = IR^2
  • P = VI
  • P = V^2/R

    • In a series circuit, how does the total resistance compare to the individual resistances?

  • It is equal to the average of the individual resistances
  • It is always greater than the sum of the individual resistances
  • It is equal to the sum of the individual resistances (correct)
  • It is always less than the sum of the individual resistances

    • What happens to the brightness of bulbs in a parallel circuit if one of the bulbs is removed?

  • All bulbs become brighter
  • All bulbs become dimmer
  • The brightness of other bulbs remains the same (correct)
  • Only the removed bulb becomes dimmer

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