A square shaped wire loop of sides D= 5L is placed in a magnetic field as shown in the figure. r is the radial distance from the given axis and tis the time coordinate. (The bottom and top sides are at r= Land =L+D, respectively.) The magnitude of the magnetic field is given by 8r.1)=(9) V/s and the its direction is shown in the figure. The resistance of the square shaped wire is 4 2. What is the magnitude (in units of A) and the direction of the induced current on the the loop at time <- 6s? 9.26, clockwise 9.26, counter-clockwise O54.00, clockwise 112.50, counter-clockwise 112.50, clockwise L D OB r D

A copper wire is 10.00 m long and has a cross-sectional area of 2.00 ✕ 10-4 m2. This wire forms a one turn loop in the shape of square and is then connected to a battery that applies a potential difference of 0.100 V. If the loop is placed in a uniform magnetic field of magnitude 0.400 T, what is the maximum torque that can act on it? The resistivity of copper is 1.7 ✕ 10-8 ·m.

Ampere's Law 2. Figure 4 shows a cross-sectional view of a coaxial cable. The center conductor is surrounded by a rubber layer, an outer conductor, and a second rubber layer. Suppose the current in the inner conductor is 11 = 1.00 A pointing out of the page and the current in the outer conductor is 12 = 3.00 A pointing in the page. If the distance d = 1.00 mm, determine the magnitude and direction of the magnetic field at (a) point "a", and (b) at point "b". Figura 4

Suppose you wish to measure the current in a wire. You have a device that can measure the strength of the magnetic field produced by the wire, but the device does not directly measure the current. If the device is place 1.32m away from the wire, and the magnetic field strength is 0.93μT, what is the current running through the wire in Amps? Note: It is understood that the unit of your answer is in A, however do not explicitly include units in your answer. Enter only a number. If you do enter a unit, your answer will be counted wrong.

Consider the current-carrying wire shown in the figure. The current creates a magnetic field at the point P, which is the center of the arc segment of the wire. If 0 = 30.0°, the radius of the arc is 0.800 m, and the current is 5.00 A, what are the magnitude (in nT) and direction of the field produced at P? magnitude direction into the screen nT i

A stationary square coil of area 0.1 m2 is brought over time of 2 s into the magnetic field 8.9 T with its plane perpendicular to the magnetic field. The coil has 1030 turns. Calculate the magnetic flux linkage through the coil. Give your answer in SI units.

The circuit in the figure below is located in a magnetic field whose magnitude varies with time according to the expression B = 1.00 x 10³ t, where B is in teslas and t is in seconds. Assume the resistance per length of the wire is 0.099 /m. Find the current in section PQ of length a = 60.0 cm. magnitude μA direction from Q to P a xxxxx * * * ** x Bin * * x X xx * * * xx x X xx 2a x x x x xx P xxxx xxxx **** * x x x x Q a

A loop of wire moves with a velocity of 3.0 m/sm/s through a magnetic field whose strength decreases with distance at a rate of 5.0 μT/m�T/m. If the loop has an area of 0.75 m2m2 and internal resistance of 0.50 ΩΩ, what is the current in the wire?

In an experiment designed to measure the Earth's magnetic field using the Hall effect, a copper bar 0.450 cm thick is positioned along an east-west direction. Assume n = 8.46 x 1028 electrons/m3 and the plane of the bar is rotated to be perpendicular to the direction of B. If a current of 8.00 A in the conductor results in a Hall voltage of 5.75 x 10-12 v, what is the magnitude of the Earth's magnetic field at this location? µT

A piece of copper wire has a resistance per unit length of 4.63 × 10/m. The wire is wound into a thin, flat coil of many turns that has a radius of 0.208 m. The ends of the wire are connected to a 12.0-V battery. Find the magnetic field strength at the center of the coil. Number i Units >