A conductor {AB} is kept along north south ...

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ICSE Class 10 Physics 2022 Paper

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Section-A

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Choose the correct answers to the questions from the given options.

Question : 5 of 45

Marks: +1, -0

A conductor

{AB}

is kept along north south direction of the earth above a magnetic needle as shown below. When the key

{K}

is closed then :

the needle will not show any deflection
the needle will deflect towards east
the needle will turn in the opposite direction i.e. towards south
the needle will deflect towards west.

Solution:

(d) the needle will deflect towards west.

Explanation : By SNOW rule, which states that if the current in the wire moves from South to North such that the wire is placed Over the magnetic needle, then its north pole will deflect towards West .

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