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Science · 2022 · 3 marks
CBSE 2022 · Region 3 · Set 3 · Q12
(a) Draw the pattern of magnetic field lines produced by a current carrying circular loop showing the direction of current in the loop and the…
(a)
Draw the pattern of magnetic field lines produced by a current carrying circular loop showing the direction of current in the loop and the direction of the magnetic field lines.
(b)
State the rule which can be applied to know the direction of magnetic field lines in the above case.
Marking-scheme solution
(a) Pattern of magnetic field
1 mark for correct representation of direction of magnetic field lines and current.
(b) Right-hand thumb rule : Hold a current carrying straight conductor in your righthand such that the thumb points towards the direction of current, then your fingers will wrap around the conductor in the direction of the field lines of the magnetic field.
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CBSE Class 10 Science past-paper question from the 2022 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.