A rectangular coil of wire consisting of 10 turns, each 0.20 m long and 0.30 m wide, lies in the xy plane. If the coil carries a current of 2.0 A, what is the torque exerted by a magnetic field of magnitude 0.010 T that is directed at an angle of 30.0 degrees with respect to the positive z axis? a) 1.2 x 10^-2 N.m b) 2.4 x 10^-2 N.m c) 6.0 x 10^-3 N.m d) 4.0 x 10^-3 N.m e) 3.0 x 10^-3 N.m

a) A current path shaped as shown in Figure produces a magnetic field at P, the center of the arc. If the arc subtends an angle of 0=30.0° and the radius of the arc is R=0.400 m, what are the magnitude and direction of the field produced at P if the current is l=2.00 A? 30.0° b) A loop of a full circle of radius R=0.400 m carries a current of I=2.00 A. What is the magnitude of the magnetic field at its center? Hint: Magnitude of the magnetic field at point P (center of the arc) due to circular arc of radius R carrying a current of I and subtending an angle of 0 is: e (0 is in terms of radians, Ho= 4T x 107N.A²) B=- 4 AR

A 1000-turns coil encloses a rectangular area of dimensions 38.0 cm and 28.0 cm. The coil lies in the plane of the page and carries a clockwise current of 4.7 A.  If a uniform magnetic field of 180 µT is directed toward the left of the page, what is the magnitude of the torque of the coil? In which direction will the coil rotate?

A current wire of I = 3(A) is placed in a nonuniform magnetic field given by B = Boî. What is the magnitude of the magnetic force in Newton acting on the current wire in the figure if Bo = 1(T), L = 2(m) and R = 1(m) are given? a) 2 b) 1 c) 3/4 d) 9 e) 4 R ... J. (2) (1)