A conducting loop with area 0.19 m2 and resistance 7.0 Ω lies in the x-y plane. A spatially uniform magnetic field points in the z-direction. The field varies with time according to Bz=at2−b, where a = 2.4 T/s2 and b = 8.2 T. A. Find the loop current when t = 2.0s B. Find the loop current when Bz = 0

A square loop of wire with sides of 20.0cm is half in and half out of a uniform magnetic field which points out of the page as shown. The loop is moving with a speed of 3.00m/s and the strength of the magnetic field is 0.100Tesla. The total resistance of the loop is 4.00Ω. Find the magnitude and directionof the current if the loop is moving in the following directions. a.in the +x direction b.in the -x direction c.in the +y direction d.in the -y direction

A. What is the current in the current loop? B. What is the current density J in the current loop? C. To decide whether this is a large or a small current density, find the ratio of the current density J in the current loop to the current density of a 8.0 A current in a 1.6- mm diameter wire. Express your answer using two significant figures.

A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. The square loop is then re-formed into a circular loop, which also consists of a single turn and is also perpendicular to the same magnetic field. The magnetic flux that passes through the square loop is 5.78 × 10-3 Wb. What is the flux that passes through the circular loop?

The diagram below is of a triangular prism that has three rectangular sides and two triangular sides. This prism is placed in a region of uniform magnetic field of magnitude 0.120 T directed in the positive x direction. Here ab = 30.0 cm, ac = 40.0 cm, bc 50.0 cm, and ad 66.0 cm. = = = = Determine the magnetic flux, including the sign, through each of the five faces of the box. abc cbef Pabed Pacfd def = Additional Materials = Reading B a Wb Wb Wb Wb Wb y

The drawing shows four insulated wires overlapping one another, forming a square with 0.050-m sides. All four wires are much longer than the sides of the square. The net magnetic field at the center of the square is 86 µT directed into the drawing. Calculate the current I. Number i 2.7 A 3.9 A 7.3 A Units

A current of 17.0mA is maintained in a loop of circumference 2.00m. A 0.800T magnetic field is oriented parallel to the plane of the loop.a. The magnetic moment on the loop is µ =_____x10^-3 A m^2b. The magnitude of the torque exerted by the magnetic field on the loop is:______x10^-3Nm

A conducting rod of length L = 27.0 cm slides over two horizontal metal bars with a constant speed v = 4.00 m/s to the right. The entire set up is in a region of uniform magnetic field that is directed perpendicular to the rods and into the page. What is the strength of the magnetic field if an emf of magnitude 7.50 V is induced? T 8 'V L