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Science · 2025 · 3 marks
Magnetic Effects of Electric CurrentMagnetic Field due to a Current-carrying Conductor3 marksApplyshort answer
CBSE 2025 · Region 3 · Set 2 · Q32
(a) Draw a labelled diagram to show the pattern of magnetic field lines on a horizontal white board due to a straight current carrying conductor…
(a)
Draw a labelled diagram to show the pattern of magnetic field lines on a horizontal white board due to a straight current carrying conductor passing perpendicular through its centre. If the direction of current in the conductor is vertically downwards, mark the direction of (i) current, and (ii) magnetic field lines.
(b)
State the right hand thumb rule and check whether the directions marked on the diagram are in accordance with this rule.
Marking-scheme solution
(a) •
Diagram : $\displaystyle 1$ Labelling : $\displaystyle 1$
(b) Right hand thumb rule :
Imagine that you are holding a current-carrying straight conductor in your right hand such that the thumb points towards the direction of current. Then your fingers will wrap around the conductor in the direction of the magnetic field lines.All Magnetic Effects of Electric Current questions2025 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 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.