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Magnetic Effects — Prelims Questions

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Version 1Updated 9 Mar 2026

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Q1medium

Which of the following statements about the magnetic field produced by a current-carrying straight conductor is INCORRECT?

Q2easy

An electric motor converts:

Q3medium

Consider the following statements regarding a solenoid: 1. The magnetic field lines inside a solenoid are nearly straight and parallel to its axis. 2. The strength of the magnetic field inside a solenoid is directly proportional to the current flowing through it. 3. Inserting a soft iron core inside a solenoid decreases its magnetic field strength. Which of the statements given above is/are correct?

Q4easy

Fleming's Left-Hand Rule is used to determine the direction of:

Q5hard

Which of the following applications primarily relies on the principle of electromagnetic induction rather than the magnetic effect of electric current (force/field generation)?