One metal wire is kept in east-west direction. I is the current flow due west. Then force, due to magnetic field →B of the earth on the wire is in the........ Direction.
A
downward
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B
Upward
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C
north
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D
south
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Solution
The correct option is A downward
according to left-hand rule. if the current is in west direction and a magnetic field is in north direction So magnetic force will be vertically down direction.