A current of 17.0 mA is maintained in a single circular loop with a circumference of 1.40 m. A magnetic field of 0.740 T is directed parallel to the plane of the loop. What is the magnitude of the torque exerted by the magnetic field on the loop? ___ N · m

Two very long wires are parallel to the z axis, as shown in the figure. Each carries a current, I1=I2= 25.0 A in the direction of the positive z axis. The Earth's magnetic field is given by B= (2.6X10^–5 j)T (in the xy plane and pointing north). The needle of a compass is placed at the origin.A. The magnetic field produced by wire 1 at the origin has magnitude: _____X10^-5T, in direction: i, j or k.B. The magnetic field produced by wire 2 at the origin has magnitude: _____X10^-5T, in direction: i, j or k.C. The net produced magnetic field at the origin has components:______X10^-5T +i, ______X10^-5T-j.D. Determine the angle θ between the compass needle and the x-axis:_____°.

Young domestic chickens have the ability to orient themselves in the earth's magnetic field. Researchers used a set of two coils to adjust the magnetic field in the chicks' pen. (Figure 1) shows the two coils, whose centers coincide, seen edge-on. The axis of coil 1 is parallel to the ground and points to the north; the axis of coil 2 is oriented vertically. Each coil has 27 turns and a radius of 1.4 m. At the location of the experiment, the earth's field had a magnitude of 5.6 × 10-5 T and pointed to the north, tilted up from the horizontal by 61°. Part A If the researchers wished to exactly cancel the earth's field, what currents would they need to apply in coil 1 and in coil 2? Express your answers in amperes separated by a comma. nνα ΑΣφ I1 I2 = A Submit Previous Answers Request Answer Provide Feedback Figure 1 of 1 Coil 1 Coil 2 61° North The centers of the coils coincide. Up

Two coils have the same number of circular turns and carry the same current. Each rotates in a magnetic field acting perpendicularly to its axis of rotation. Coil 1 has a radius of 4.6 cm and rotates in a 0.21-T field. Coil 2 rotates in a 0.54-T field. Each coil experiences the same maximum torque. What is the radius (in cm) of coil 2? Number i Units

Young domestic chickens have the ability to orient themselves in the earth's magnetic field. Researchers use a set of two coils to adjust the magnetic field in the chicks' pen. The figure below shows the two coils, whose centers coincide, seen edge-on. The axis of coil 1. is parallel to the ground and points to the north; the axis of coil 2 is oriented vertically. Each coil has 43 turns and a radius of 1.0 m. At the location of the experiment, the earth's field had a magnitude of 5.6 x 10-5 T and pointed to the north, tilted up from the horizontal by 61°. If the researchers wished to exactly cancel the earth's field, what currents would they need to apply in coil 1, and in coil 2? 13 Im IAST Coil 1- Coil 2 61° * North The centers of the coils coincide. Up Z B

The accompanying figure shows two long, straight, horizontal wires that are parallel and a distance 2a apart. Both wires carry current I0 in the same direction. Give your answer in terms of given variables (I0 and a) and physical and numerical constants (μ0 and π). 1. What is the magnetic field at P1? The magnetic field at P1 is____________(T) 2. What is the magnetic field at P2? The magnetic field at P2 has magnitude__________ and points________(into the page, out of the page)

Two circular coils of current-carrying wire have the same magnetic moment. The first coil has a radius of 0.072 m, 110 turns, and carries a current of 3.7 A. The second coil has 190 turns and carries a current of 7.6 A. What is the radius of the second coil? Number i Units

A solenoid of length 2.10 m and radius 1.70 cm carries a current of 0.190 A. Determine the magnitude of the magnetic field inside if the solenoid consists of 1800 turns of wire. __ T ?

See the attached picture where two conductors carry currents in the plane of the page. What is the magnitude and direction of the net force on the rectangular loop due to the magnetic field created by conductor #1?

Three very long straight and parallel wires carry current in the same direction (out of the page). The amount of current in each wire and the distances between the wires are as shown in the diagram. Determine the magnetic force per unit length on the middle wire. Give your answer for the magnitude of the force per unit length either in mN but do not include the units in the answer box. 2.14 20 A 2.0 cm 10 A 4.0 cm 15 A