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Science · 2026 · 5 marks
CBSE 2026 · Region 2 · Set 3 · Q39
(a) (i) The magnetic field lines due to two bar magnets X and Y are shown in the given diagram. If the magnet X is displaced towards magnet Y, will…
(i)
The magnetic field lines due to two bar magnets X and Y are shown in the given diagram. If the magnet X is displaced towards magnet Y, will there be repulsion or attraction between them ? Justify.
(ii)
A metallic conductor is suspended perpendicular to the magnetic field of a horseshoe magnet. The conductor gets displaced towards the left when a current is passed through it. What will be the effect on displacement of conductor if the :
(I)
Current through the conductor is increased ?
(II)
Horseshoe magnet is replaced by another stronger horseshoe magnet ?
(III)
Direction of current through the conductor is reversed ?
(i)
Draw a schematic diagram of a domestic electric circuit which includes the following devices:
(I)
A fuse
(II)
A power meter
(III)
One light point
(IV)
A power plug
(ii)
Why is it necessary to connect an earth wire to the electrical appliances having metallic covers?
Marking-scheme solution
(i)
There will be repulsion
Right end of X magnet and left end of Y magnet behaves as north pole. Like poles repel each other.
(ii) (I) Displacement of conductor increases.
(II) Displacement of conductor increases.
(III) Direction of deflection reverses / Conductor gets displaced towards right.
(i) 
Diagram Labelling of each part asked in the question
(ii)
An earth wire provides a low resistance conducting path for the current and thus, protect us from electric shock due to leakage of electric current to metallic body of electric appliances.
All Magnetic Effects of Electric Current questions2026 question paperNCERT solutions: Magnetic Effects of Electric CurrentPractice Magnetic Effects of Electric Current →
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CBSE Class 10 Science past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.