NEET Physics: Electromagnetic Induction — MCQ Test 7

Q6. A wheel with 5 spokes of 0.65 m each rotates at 42 rpm in a 0.7 T field. What is the induced emf?

Q7. A rod of length 0.35 m moves at 2.5 m/s in a 0.2 T field perpendicular to its length. What is the induced emf?

Q8. A circular loop of radius 17 cm is deformed into a straight wire in a 0.15 T field in 0.5 s. What is the induced emf?

Q9. A rod rotates at 30 rad/s in a 0.6 T field. If the length from the axis to the tip is 0.8 m, what is the emf induced?

Q10. Two nearby coils are arranged such that a changing current in one induces an emf in the other. The strength of this effect is quantified by what property?

NEET Physics — Electromagnetic Induction

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In an AC generator, the output voltage reverses direction every half-cycle due to what?

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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 Electromagnetic Induction. 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 Generator, Reverses, Direction, Solenoid, Inductance, and Magnetic.

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. In an AC generator, the output voltage reverses direction every half-cycle due to what?

  • A. Change in field strength
  • B. Resistance variation
  • C. Capacitance effects
  • D. Reversal of flux change direction

Q2. A solenoid of 900 turns/m and area 0.018 m² has \( \mu_r = 1 \). What is its self-inductance? (\( \mu_0 = 4\pi \times 10^{-7} \, \text{H/m} \))

  • A. 0.015 H
  • B. 0.016 H
  • C. 0.018 H
  • D. 0.02 H

Q3. A coil is placed in a magnetic field that oscillates rapidly. The induced emf is higher when what property of the field increases?

  • A. Strength of the field
  • B. Frequency of oscillation
  • C. Direction of the field
  • D. Size of the coil

Q4. A coil of 190 turns and area 0.03 m² is rotated at 40 Hz in a 0.09 T field. What is the maximum emf?

  • A. 125 V
  • B. 126 V
  • C. 128 V
  • D. 128.9 V

Q5. In an AC generator, increasing the number of turns in the coil affects what aspect of the output?

  • A. Frequency
  • B. Amplitude of emf
  • C. Direction of current
  • D. Resistance of the coil

+ 5 more questions in the actual test

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