NEET Physics: Current Electricity — MCQ Test 3

Q6. A cell of emf \( 7 \, \text{V} \) and internal resistance \( 1 \, \Omega \) is connected to a \( 6 \, \Omega \) resistor. What is the terminal voltage?

Q7. A \( 10 \, \text{V} \) battery with \( 1 \, \Omega \) internal resistance is connected to a \( 9 \, \Omega \) resistor. What is the power dissipated in the internal resistance?

Q8. In a circuit with two resistors of different resistances in series, which resistor dissipates more power if the same current flows through both?

Q9. Two cells of emf \( 2.5 \, \text{V} \) and \( 3.5 \, \text{V} \) with internal resistances \( 0.5 \, \Omega \) and \( 1 \, \Omega \) are connected in series. What is the equivalent emf?

Q10. A \( 5 \, \Omega \) resistor carries a current of \( 2 \, \text{A} \) for \( 10 \, \text{s} \). How much energy is dissipated as heat?

NEET Physics — Current Electricity

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Medium

A 6 V6 \, \text{V} battery with 0.5 Ω0.5 \, \Omega internal resistance is connected to a 5.5 Ω5.5 \, \Omega resistor. What is the power dissipated in the external resistor?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Current Electricity. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Internal, Resistance, Connected, Resistor, Dissipated, and External.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1.

A 6 V6 \, \text{V} battery with 0.5 Ω0.5 \, \Omega internal resistance is connected to a 5.5 Ω5.5 \, \Omega resistor. What is the power dissipated in the external resistor?

  • A.

    4.5 W4.5 \, \text{W}

  • B.

    5.0 W5.0 \, \text{W}

  • C.

    5.25 W5.25 \, \text{W}

  • D.

    5.5 W5.5 \, \text{W}

Q2.

A 18 V18 \, \text{V} battery with negligible internal resistance is connected to a 6 Ω6 \, \Omega and 12 Ω12 \, \Omega resistor in series. What is the power dissipated in the 6 Ω6 \, \Omega resistor?

  • A.

    5 W5 \, \text{W}

  • B.

    6 W6 \, \text{W}

  • C.

    7 W7 \, \text{W}

  • D.

    8 W8 \, \text{W}

Q3.

A circuit has a 28 V28 \, \text{V} battery with 4 Ω4 \, \Omega internal resistance and three resistors 4 Ω4 \, \Omega, 8 Ω8 \, \Omega, 16 Ω16 \, \Omega in parallel. What is the current through the 8 Ω8 \, \Omega resistor?

  • A.

    1.0 A1.0 \, \text{A}

  • B.

    1.2 A1.2 \, \text{A}

  • C.

    1.25 A1.25 \, \text{A}

  • D.

    1.27 A1.27 \, \text{A}

Q4.

A circuit has a 16 V16 \, \text{V} battery with 2 Ω2 \, \Omega internal resistance and three resistors 2 Ω2 \, \Omega, 4 Ω4 \, \Omega, 8 Ω8 \, \Omega in parallel. What is the current through the 2 Ω2 \, \Omega resistor?

  • A.

    2.7 A2.7 \, \text{A}

  • B.

    2.8 A2.8 \, \text{A}

  • C.

    2.9 A2.9 \, \text{A}

  • D.

    2.91 A2.91 \, \text{A}

Q5.

A wire of length 3 m3 \, \text{m} and cross-sectional area 3×10−6 m23 \times 10^{-6} \, \text{m}^2 has a resistance of 5 Ω5 \, \Omega. What is the resistivity of the material?

  • A.

    5.0×10−6 Ωm5.0 \times 10^{-6} \, \Omega \text{m}

  • B.

    6.0×10−6 Ωm6.0 \times 10^{-6} \, \Omega \text{m}

  • C.

    7.0×10−6 Ωm7.0 \times 10^{-6} \, \Omega \text{m}

  • D.

    8.0×10−6 Ωm8.0 \times 10^{-6} \, \Omega \text{m}

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