A uniform metre rule is balanced at its centre. It is balanced by the 30N, 5N and the magnetic force between P and Q. P is...

A uniform metre rule is balanced at its centre. It is balanced by the 30N, 5N and the magnetic
force between P and Q. P is fixed and Q has a weight of 5N

Ignoring the weight of the metre rule, calculate the value of the magnetic force between Q and P

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sharon kalunda answered the question on April 3, 2019 at 15:55

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