Class 10 Science — Chapter 12: Magnetic Effects of Electric Current
66 practice questions · 22 Easy · 22 Medium · 22 Hard
Practise Class 10 Science Chapter 12, "Magnetic Effects of Electric Current", with 66 NCERT-aligned multiple-choice questions. The set is split into 22 Easy, 22 Medium and 22 Hard questions, so you can warm up on the fundamentals and then push into the exam-level problems that separate top scorers in CBSE Board exams and the JEE & NEET foundation years.
"Magnetic Effects of Electric Current" is one of the chapters where concept clarity across physics, chemistry and biology basics really pays off. Each MCQ on this chapter is timed and uses exam-grade marking (+2 correct, −1 wrong, 0 skipped), training the same accuracy-under-pressure that real papers demand. Every question carries a short explanation, so a wrong answer becomes a quick lesson rather than a dead end — the fastest way to close gaps before a test.
Use this chapter as targeted revision: attempt the Easy set first to confirm your basics on Magnetic Effects of Electric Current, then move to Medium and Hard to test application and problem-solving. Your accuracy, streaks and XP save automatically, and the chapter feeds into your overall Class 10 Science mastery score. A few sample questions are shown below; sign in free to practise all 66.
Key concepts: Magnetic Effects of Electric Current (Class 10 Science)
An electric current produces a magnetic field, and a changing magnetic field produces a current. These effects power electric motors and generators.
- Magnetic field of a current
- A current-carrying conductor creates a magnetic field; field lines are concentric circles around a straight wire and form a bar-magnet-like field around a solenoid.
- Right-hand thumb rule
- If the thumb points along the current, the curled fingers give the direction of the magnetic field.
- Force on a conductor
- A current-carrying conductor in a magnetic field experiences a force — the principle of the electric motor (Fleming's left-hand rule).
- Electromagnetic induction
- A changing magnetic field around a coil induces a current (Fleming's right-hand rule) — the principle of the electric generator.
- Domestic circuits
- Live, neutral and earth wires; fuses protect against short-circuits and overloading; the earth wire prevents shocks.
Key formulas — Magnetic Effects of Electric Current
💡 Exam tips for Magnetic Effects of Electric Current
- Left-hand rule → motor (force from current); right-hand rule → generator (current from motion).
- The earth wire is a safety feature; the fuse melts and breaks the circuit during a fault.
Sample questions
First scientist to observe magnetic effect of current:
Hans Oersted (1820) noticed deflection of compass near current-carrying wire.
Magnetic field inside a long solenoid is:
Inside a solenoid, field lines are parallel and uniform.
An electric generator converts:
Generator: kinetic energy of rotating coil → induced EMF.
Magnetic Effects of Electric Current — FAQs
What are the key concepts in Class 10 Science Magnetic Effects of Electric Current?+
An electric current produces a magnetic field, and a changing magnetic field produces a current. These effects power electric motors and generators. Key ideas include Magnetic field of a current, Right-hand thumb rule, Force on a conductor, Electromagnetic induction, Domestic circuits.
What does Class 10 Science Chapter 12 (Magnetic Effects of Electric Current) cover on XamBaaz?+
It covers 66 NCERT-aligned MCQs on "Magnetic Effects of Electric Current" — 22 Easy, 22 Medium and 22 Hard — each with a timed quiz and an instant explanation, suitable for CBSE Board exams and the JEE & NEET foundation years.
Are these "Magnetic Effects of Electric Current" questions free to practise?+
Yes — sign in with Google to practise "Magnetic Effects of Electric Current" free. Full unlimited access is ₹999/year (limited-time launch price), with no per-chapter charges.
How should I revise "Magnetic Effects of Electric Current" for the exam?+
Start with the Easy quiz to confirm your fundamentals, then attempt Medium and Hard for application-level practice. Review each explanation, retry the questions you miss, and track your accuracy on this chapter until it is consistently high.
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