Magnetic Effects of Current: Class 10 Previous Year Questions

Magnetic Effects of Current questions asked in CBSE board exams

Repeated questions first. Open the free app to see each question as it appeared in the paper, with its marking scheme.

1. (a) The pattern of magnetic field due to a current carrying wire depends upon the shape made by that wire. Justify. (b) A current carrying straight wire AB is shown in the given diagram. Out of X, Y and Z on Electric i Current which point will the strength of …
   Board 20264 marksshort answer
2. Assertion (A) : No two magnetic field lines are found to cross each other. Reason (R) : The compass needle cannot point towards two directions at the point of intersection of two magnetic field lines.
   Board 20251 markAssertion-Reason
3. Observe the given figures A and B. When chhui-mui (sensitive) plant is touched, its leaves fold. This is due to : Figure A Figure B (A) Hormonal effect (B) Thermal effect (C) Change in amount of water in cells (D) Electromagnetic effect
   Board 20251 markMCQ
4. Name and state the rule to determine the direction of a : (i) magnetic field produced around a current carrying straight conductor. (ii) force experienced by a current carrying straight conductor placed in a magnetic field which is perpendicular to it.
   Board 20243 marksshort answer
5. Strength of magnetic field produced by a current carrying solenoid DOES NOT depend upon : (A) number of turns in the solenoid (B) direction of the current flowing through it (C) radius of solenoid (D) material of core of the solenoid.
   Board 20241 markAssertion-Reason
6. Assertion (A) : The deflection of a compass needle placed near a current carrying wire decreases when the magnitude of an electric current in the wire is increased. Reason (R) : Strength of the magnetic field at a point due to a current conductor.
   Board 20241 markAssertion-Reason
7. Draw a diagram to show the pattern of magnetic field lines on a horizontal sheet of paper due to a straight conductor passing through its centre and carrying current vertically upwards. Mark on it (i) the direction of current in the conductor and (i) the corre…
   Board 20243 marksshort answer
8. The pattern of the magnetic field produced inside a current carrying solenoid is : (b) (a) (c) (d) 15. (a) , , (b) , , , (c) (d) , , , , () 16.· (a) (b) (c) (d) 1720( (a), (b), () (): (a) (A) (R) (R), (A) (b) 3(A)(R),(R)(A) (c) (A) , (R) 1 (d) (A) , (R) 1 17. …
   Board 20241 markMCQ
9. (i) Two magnetic field lines do not intersect each other. Why ? (i) How is a uniform magnetic field in a given region represented ? Draw a diagram in support of your answer.
   Board 20242 marksshort answer
10. A positron enters a uniform magnetic field at right angles to it as shown. The direction of force experienced by the positron will be : Positron (a) to the right (b) to the left (c) into the page (d) out of the page.
    Board 20231 markAssertion-Reason
11. Assertion (A) : Magnetic field lines do not intersect each other. Reason (R) : Magnetic field lines are imaginary lines, the tangent to which at any point gives the direction of the field at that point.
    Board 20231 markAssertion-Reason
12. (i) (a) State the rule used to find the force acting on a current carrying conductor placed in a magnetic field. (i) Given below are three diagrams showing entry of an electron in a magnetic field. Identify the case in which the force will be (1) maximum and (…
    Board 20233 marksshort answer
13. Assertion (A) : The strength of the magnetic field produced at the centre of a current carrying circular coil increases on increasing the number of turns in it. Reason (R) : The current in each circular turn has the same direction and the magnetic field due to…
    Board 20231 markAssertion-Reason
14. (a) (i) Name and state the rule to determine the direction of force experienced by a current carrying straight conductor placed in a uniform magnetic field which is perpendicular to it. (ii) An alpha particle while passing through a magnetic field gets project…
    Board 20221 markvery short
15. (a) Name the poles P, Q, R and S of the magnets in the following figures ·a'and'b': /+/+1=2 Q: ·P Figure ·a' R. Figure ·b' (b) State the inference drawn about the direction of the magnetic field lines on the basis of these diagrams. OR When is the force experi…
    Board 20221 markvery short
16. Assertion (A): Iron filings scattered around a straight current carrying conductor in a plane perpendicular to the length of the conductor, arrange themselves in concentric circles. Reason (R): Magnetic field has both magnitude and direction.
    CBSE practice 2023-241 markAssertion-Reason
17. Imagine a current carrying circular loop of wire on the plane of your answer sheet. The magnetic field inside the loop is into the plane of the paper. i) What must be the direction of the current in the loop? ii) State the rule used here. OR a) State the rule …
    CBSE practice 2023-242 marksshort answer
18. *There is no change in the Question Paper Design and Assessment Pattern for Academic Session 2026-27. 36 A. State the Right-Hand Thumb Rule and describe how it helps determine the direction of magnetic field around a current-carrying conductor. B. Explain how …
    Sample paper 2026-275 markslong answer
19. a) Draw the pattern of the magnetic field lines around a current-carrying solenoid. b) Mention two precautions that should be taken to avoid the overloading of domestic electric circuits. 2+1 R
    CBSE practice 2023-243 marksshort answer
20. P and Q represent two straight wires carrying equal current (I) in a direction perpendicular to the plane of the screen outwards. K is the midpoint of the line joining P and Q. The image shows the magnetic field lines around the wire. But the direction of the …
    CBSE practice 2022-235 markslong answer

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