How to Excel in JEE Main Magnetic Effects of Current & Magnetism Mock Tests
Magnetic Effects Of Current and Magnetism is a vital chapter in JEE Physics, focusing on Biot–Savart Law, Ampere’s circuital law, solenoids, and magnetic field concepts essential for both theoretical and problem-based questions. Taking this mock test will reinforce your understanding, sharpen application skills, and boost exam confidence on one of the most scoring JEE Main chapters.
Mock Test Instructions for the Magnetic Effects Of Current And Magnetism Mock Test 2:
- 20 questions from Magnetic Effects Of Current And Magnetism
- Time limit: 20 minutes
- Single correct answer per question
- Correct answers appear in bold green after submission
How Can JEE Mock Tests Help You Master Magnetic Effects Of Current And Magnetism?
- Sharpen conceptual clarity on Biot–Savart Law, Ampere’s Law, and solenoid fields via targeted practice.
- Mock tests expose typical mistakes in right-hand thumb rule and force direction questions.
- Enhance your speed and accuracy by mimicking the timed JEE exam environment.
- Analyze your MCQ strengths and weaknesses for every sub-topic in the magnetism chapter.
- Immediate feedback reveals where you need to revise formulas and short tricks for magnetic field calculations.
Boost JEE Main Magnetism Accuracy with Expert-Designed Chapter Mock Tests
- Practice real exam pattern MCQs on long wires, solenoids, and toroids created by JEE experts.
- Identify and avoid common MCQ traps related to direction and magnitude of force or field.
- Regular mock testing helps in memorizing standard formulas and applying them in mixed concept scenarios.
- Get instant results and clear explanations to strengthen your problem-solving skills.
- Utilize sectional analysis to focus revision on weak magnetism sub-topics before the actual JEE Main.
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| 1 | Online FREE Mock Test for JEE Main Chemistry |
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FAQs on JEE Main Mock Test 2025-26: Magnetic Effects of Current and Magnetism
1. What is magnetism?
Magnetism is a physical phenomenon associated with the motion of electric charge, resulting in attractive or repulsive forces between objects. It is observed most prominently in materials like iron, cobalt, and nickel, which are called magnetic materials.
2. State the right-hand thumb rule for magnetic field direction around a conductor.
The right-hand thumb rule states that if you hold a current-carrying straight conductor in your right hand such that the thumb points in the direction of the current, then the fingers wrapping around the wire show the direction of the magnetic field lines surrounding the conductor.
3. What happens to a magnetic compass needle when placed near a bar magnet?
When a magnetic compass needle is placed near a bar magnet, it aligns itself along the magnetic field lines of the magnet. The needle’s north pole points towards the magnet’s south pole, and the south pole points towards the magnet’s north pole, indicating the direction of the local magnetic field.
4. Define magnetic field lines and state their properties.
Magnetic field lines are imaginary lines used to represent the direction and strength of a magnetic field.
Properties:
- They emerge from the north pole and enter the south pole outside the magnet.
- Field lines never intersect each other.
- Their density indicates the strength of the magnetic field; closer lines mean a stronger field.
5. What is electromagnetic induction?
Electromagnetic induction is the production of an electric current or voltage across a conductor when it is placed in a changing magnetic field. This phenomenon was discovered by Michael Faraday and forms the basis of devices like generators and transformers.
6. Differentiate between magnetic materials and non-magnetic materials.
Magnetic materials are substances that can be attracted by a magnet and can be magnetized themselves, such as iron, cobalt, and nickel. Non-magnetic materials do not show magnetic properties and are not attracted to magnets, examples include wood, plastic, and glass.
7. Why does a current-carrying conductor experience a force in a magnetic field?
A current-carrying conductor placed in a magnetic field experiences a force because the movement of electrons in the current interacts with the magnetic field, resulting in a force called the magnetic force. This is expressed mathematically by Fleming's left-hand rule.
8. What is a solenoid and its use in electromagnetism?
A solenoid is a coil of insulated wire wound in the shape of a cylinder. When an electric current passes through it, the solenoid produces a uniform magnetic field inside it. Solenoids are used to create electromagnets and in devices such as relays and electric bells.
9. State Flemings left-hand rule and its application.
According to Fleming’s left-hand rule, if the index finger, middle finger, and thumb of the left hand are held mutually perpendicular, the index finger represents the direction of the magnetic field, the middle finger shows the direction of current, and the thumb points in the direction of the resulting force. This rule is used to predict the direction of force in electric motors.
10. How can you increase the strength of an electromagnet?
Electromagnet strength can be increased by:
- Increasing the number of turns in the coil.
- Raising the current passing through the coil.
- Using a soft iron core inside the solenoid.
11. What are the uses of magnetic effects of current in daily life?
The magnetic effects of current have several daily life uses such as electric bells, electric motors, transformers, relays, generators, and magnetic locks. These devices work on the basic principle that an electric current can produce a magnetic field.
12. Describe a simple experiment to show that an electric current produces a magnetic field.
Take a straight wire, connect it to a battery and place a magnetic compass nearby. When electric current passes through the wire, the compass needle deflects, indicating the presence of a magnetic field around the current-carrying wire.
