As shown in the figure, a wire is bent to form a D-shaped loop, carrying current I, where the curved part is semicircle of radius R. the loop is placed in a uniform magnetic field vecB, which is directed into the plane of the paper. The magnetic force left by the closed loop is

Question

As shown in the figure, a wire is bent to form a D-shaped loop, carrying current I, where the curved part is semicircle of radius R. the loop is placed in a uniform magnetic field vecB, which is directed into the plane of the paper. The magnetic force left by the closed loop is (A) 0 (B) IRB (C) 2 IRB (D) (1/2) I R B

Tardigrade Admin · Accepted Answer

Zero (Net magnetic force on a closed current loop in a uniform vecB is zero)

Q. As shown in the figure, a wire is bent to form a $D$ -shaped loop, carrying current $I$ , where the curved part is semicircle of radius $R$ . the loop is placed in a uniform magnetic field $B$ , which is directed into the plane of the paper. The magnetic force left by the closed loop is

$0$

$I RB$

$2 I RB$

$\frac{1}{2} I RB$

Zero (Net magnetic force on a closed current loop in a uniform $B$ is zero)

Q. As shown in the figure, a wire is bent to form a D-shaped loop, carrying current I, where the curved part is semicircle of radius R. the loop is placed in a uniform magnetic field B, which is directed into the plane of the paper. The magnetic force left by the closed loop is

0

IRB

2IRB

21​IRB

Zero (Net magnetic force on a closed current loop in a uniform B is zero)

Q. As shown in the figure, a wire is bent to form a $D$ -shaped loop, carrying current $I$ , where the curved part is semicircle of radius $R$ . the loop is placed in a uniform magnetic field $B$ , which is directed into the plane of the paper. The magnetic force left by the closed loop is

$0$

$I RB$

$2 I RB$

$\frac{1}{2} I RB$

Zero (Net magnetic force on a closed current loop in a uniform $B$ is zero)