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    https://ad57adc4f6eb5ea42b541057f162...%20Physics.pdf

    For the above paper the answer is c to question 5 but why?
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    I expect you forgot there were fifty turns. So you need F=BIL for one length QS and then times fifty. The angle is irrelevant to side QS

    0.2 x 3 x 0.04 x 50 =1.2 N
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    (Original post by nerak99)
    I expect you forgot there were fifty turns. So you need F=BIL for one length QS and then times fifty. The angle is irrelevant to side QS

    0.2 x 3 x 0.04 x 50 =1.2 N
    why is the angle irrelevant
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    Because the wire as is vertical. The angle would be relevant to current in the horizontal sections of the coil.
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    (Original post by nerak99)
    Because the wire as is vertical. The angle would be relevant to current in the horizontal sections of the coil.
    thank you
 
 
 
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