The rotor in a certain electric motor is a flat, rectangular coil with 89 turns of...
M A rectangular coil consists of w 100 closely wrapped turns and has dimensions a 0.400 m and b 0.300 m The coil is hinged along the y axis, and its plane makes an angle 6 30.0 with the x axis (Fi P29.47). (a) What is the magnitude of the torque exerted on the coil by a uni- form magnetic field B 0.800 T directed in the positive x direction when the current is I 1.20 A in the direction...
A rectangular coil has N = 80 turns and each turn has a width a = 20.0 cm and a height b = 30.0 cm. The top half the coil is located in a region that has a magnetic field of magnitude B = 0.800 T directed into the page. The resistance R of the coil is 30.0 W. Find the magnitude and direction of the induced current if the coil is moved with a speed of 2.00 m/s (a)...
a rectangular 55.0 turns coil of wire of dimensions 50 cm by 30 cm. It carries a current of 1.5 A in the counterclockwise direction. It is mounted in the x-y plane. The magnetic field makes an angle of θ= 37.0° with the positive x-axis and magnitude 1.2 T. What is the magnitude of the torque (in Nm) acting on the coil.
An electric generator contains a coil of 110 turns of wire, each forming a rectangular loop 46.4 cm by 32.8 cm. The coil is placed entirely in a uniform magnetic field with magnitude B = 4.49 T and initially perpendicular to the coil's plane. What is in volts the maximum value of the emf produced when the loop is spun at 863 rev/min about an axis perpendicular to the magnetic field?
Use the formal in this picture A rectangular coil of 60 turns, dimensions 0.100 m by 0.200 m, and total resistance 10.0 Ω rotates with angular speed 30.0 rad/s about the y axis in a region where a 1.00-T magnetic field is directed along the x axis. The time t= 0 is chosen to be at an instant when the plane of the coil is perpendicular to the direction of B. Calculate (a) the maximum induced emf in the coil,...
The armature of a generator consists of a flat, square coil with 150 turns and sides with a length of 20.0 cm. The coil rotates in a magnetic field of 4.00 T at 300 revolutions per minute. The resistance of the coil is 15.0 ohms. What is the peak current produced in the coil (in A)? (A) 37.5 (B) 84.3 (C) 68.4 (D) 24.9 (E) 12.0 (F) 50.3 The armature of a generator consists of a flat, square coil with...
A rectangular coil with N turns and dimensions a and b swings with small amplitude suspended pendulum-like from the side of length b. It has a total resistance R. The coil has moment of inertia I and is immersed in a vertical magnetic field of magnitude B. Find a formula for the current in the coil as a function of time (a.) condidering only the gravitational torque on the coil, (b.) considering both the gravitational and the magnetic torque.
6. The armature of a generator consists of a flat, square coil with 150 turns and sides with a length of 20.0 cm. The coil rotates in a magnetic field of 4.00 T at 300 revolutions per minute. The resistance of the coil is 15.0 ohms. What is the peak current produced in the coil (in A)?
The armature of a small generator consists of a flat, square coil with 160 turns and sides with a length of 1.55 cm. The coil rotates in a magnetic field of 8.05×10−2 T What is the angular speed of the coil if the maximum emf produced is 2.60×10−2 V?
The armature of a small generator consists of a flat, square coil with 160 turns and sides with a length of 1.55 cm . The coil rotates in a magnetic field of 7.60×10−2 T . What is the angular speed of the coil if the maximum emf produced is 2.10×10−2 V ? (in rad/s)