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Fleming's Left Hand Rule

In the figure...

Question

In the figure the force on the wire ABC in the given uniform magnetic field will be (B=2 tesla)

A

4 (3 + 2 π) N

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B

20 N

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C

30 N

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D

40 N

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Solution

The correct option is C $20 N$
$|_{A B C} | + = |_{A C} | = i l B$

$= (2) (5) (2) = 20 N$

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