a straight wire of length 1.5 m carries a current of 2a. find the magnetic force at a point near it where magnetic field strength is 0.65T
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given, mass of wire =200 g=0.2kg
length of wire =15m
current I =2 A
magnetic field B=?
F= BIL. ( theta =90 degree Celsius)
weight wire = w=mg=0.2*9.8N
B=mg
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il. = 0.2*9.8
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2*15=0.65 T.
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