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Question

Which physical quantity represents the rate at which electric energy is dissipated or consumed in an electric circuit?

This question was previously asked in
RRB NTPC 2024 Undergraduate CBT 1 Question Paper (29-Aug-2025) (Shift 1)
The correct answer is

Electric power

The correct answer is option 3 i.e. Electric power.

The physical quantity that represents the rate at which electric energy is dissipated or consumed in an electric circuit is called electric power. Electric power is defined as the rate of energy transfer and is given by the formula P = VI, where P is the power, V is the potential difference, and I is the current. When electric energy flows through a conductor, part of it is converted into heat energy due to resistance. The unit of electric power is the watt (W), and it represents how much energy is consumed or transferred in a unit of time.

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Similar Questions

  1. Which of the following household items does NOT use the heating effect of current?

  2. The magnetic field produced by a current-carrying wire at a given point depends on which of the following factors?

  3. If the resistance of a conductor is increased to three times, then the current will be: (voltage V remains constant)

  4. Which of the following statements is/are correct?

    Statements:

    I) A current carrying conductor acts like a magnet.

    II) Moving electrons perpendicular to the magnetic field do not experience any force.

  5. In Fleming's left hand rule, which physical quantity is represented by the middle finger?

  6. The equivalent resistance of the series combination of R ohm and 5 ohm is 7 ohm. Here, R is _______.

  7. The work done in moving a charge +Q across two points having a potential difference K is:

  8. Which of the folloewing devices does NOT make use of current carrying conductor in a magnetic field ?

  9. Which of the following expressions is NOT correct for electric power?

  10. Which of the following is NOT a valid representation of electrical power P in a circuit? (The current, potential difference and resistance are written symbolically as I, V and R, respectively.)


Important Questions from Electricity

  1. 'Net metering' is sometimes seen in the news in the context of promoting the

  2. The complete form of 'IC' in electronics is
  3. Which of the following household items does NOT use the heating effect of current?

  4. The magnetic field produced by a current-carrying wire at a given point depends on which of the following factors?

  5. If the resistance of a conductor is increased to three times, then the current will be: (voltage V remains constant)

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