13. Magnetic Effects of Electric Current

Description:

This downloadable PDF offers Class 10 Science Chapter 13 – Magnetic Effects of Electric Current important questions, crafted as per the latest CBSE 2024–25 syllabus. Whether you're preparing for board exams or revising key physics concepts, this file covers everything from magnetic fields and field lines to electromagnetic induction, solenoids, and the right-hand rule.

The questions are compiled from NCERT in-text and end-of-chapter exercises, previous year papers, and conceptual HOTS to ensure full board exam readiness.

Why Choose This Book?

✅ Covers 100% of NCERT textbook questions (in-text + exercise)

✅ Structured answers aligned with CBSE marking scheme

✅ Includes diagrams: magnetic field around conductors, solenoids, etc.

✅ HOTS, MCQs, and case-based questions included

✅ Based on latest CBSE guidelines (2024–25)

✅ Ideal for last-minute revision and concept clarity

What You Will Learn?

✅ A compass needle is a small magnet. Its one end, which points towards north, is called a north pole, and the other end, which points towards south, is called a south pole.

✅ A magnetic field exists in the region surrounding a magnet, in which the force of the magnet can be detected.

✅ Field lines are used to represent a magnetic field. A field line is the path along which a hypothetical free north pole would tend to move. The direction of the magnetic field at a point is given by the direction that a north pole placed at that point would take. Field lines are shown closer together where the magnetic field is greater.

✅ A metallic wire carrying an electric current has associated with it a magnetic field. The field lines about the wire consist of a series of concentric circles whose direction is given by the right-hand rule. 

✅ The pattern of the magnetic field around a conductor due to an electric current flowing through it depends on the shape of the conductor. The magnetic field of a solenoid carrying a current is similar to that of a bar magnet.

✅ An electromagnet consists of a core of soft iron wrapped around with a coil of insulated copper wire. ✅ A current-carrying conductor when placed in a magnetic field experiences a force. If the direction of the field and that of the current are mutually perpendicular to each other, then the force acting on the conductor will be perpendicular to both and will be given by Fleming’s left-hand rule.

✅ In our houses we receive AC electric power of 220 V with a frequency of 50 Hz. One of the wires in this supply is with red insulation, called live wire. The other one is of black insulation, which is a neutral wire. The potential difference between the two is 220 V. The third is the earth wire that has green insulation and this is connected to a metallic body deep inside earth. It is used as a safety measure to ensure that any leakage of current to a metallic body does not give any severe shock to a user.

✅ Fuse is the most important safety device, used for protecting the circuits due to short-circuiting or overloading of the circuits.

What's Inside the Book?

Total Pages: Approx. 12
Format: Printable PDF (instant download)

Includes:

✅ In-text and end-of-chapter NCERT-style questions

✅ MCQs, short answer, and 3- to 5-mark long answer questions

✅ Conceptual and diagram-based problems

✅ Real-life application questions on electric motors and generators

✅ Board pattern-based practice questions from past years

Chapter Coverage

1. Magnetic field and field lines

2. Magnetic field due to current in a straight conductor and solenoid

3. Right-hand thumb rule

4. Force on a current-carrying conductor in a magnetic field

5. Electric motor and its working principle

6. Electromagnetic induction and Faraday’s law

7. Electric generator and domestic electric circuits

8. Conceptual MCQs and HOTS

Who Can Benefit from This Book?

✅ Class 10 CBSE students preparing for board exams

✅ Parents supporting their child’s science prep

✅ Tutors and teachers assigning targeted questions

✅ Students revising Physics diagrams and formula-based numericals

✅ Learners needing concise answers in board format

How to Use This Book Effectively? 

✅ Practice 3–5 questions per day starting a month before the exam

✅ Attempt questions before viewing solutions for self-evaluation

✅ Use diagrams for drawing practice with proper labelling

✅ Highlight definitions and formulae for quick recall

✅ Use the PDF in combination with NCERT textbook for full prep

Frequently Asked Questions (FAQs)