MagnetismHard
Question
A wire PQRST carrying current I = 5A is placed in uniform magnetic field B = 2T as shown in fig. If the length of part QR = 4 cm and SR = 6 cm then the magnetic force on SR edge of the wire is : -
Options
A.0.4 N
B.0.6 N
C.zero
D.6 N
Solution
Force = I (Leff)B
Leff = length normal to
= 
∴Force = 5 ×
× 2 = 0.4 N
Leff = length normal to
= ∴Force = 5 ×
× 2 = 0.4 NCreate a free account to view solution
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