Question

A triangular shaped wire carrying 10 A current is placed in a uniform magnetic field of 0.5 T, as shown in figure. The magnetic force on segment CD is (Given BC = CD = BD = 5 cm).

• A. 0.126 N
• B. 0.312 N
• C. 0.216 N
• D. 0.245 N

Answer 1

Answer: (C)

0.216 N

Answer 2

$F_m (CD)=BIl_{eff}=0.5×(10)×(5 sin 60×10^{-2})=0.216N$