1) A point charge Q moves on the x-axis in the positive direction with a speed of 240 m/s A field point is on the y-axis at y = 80 mm If the magnetic field produced at the field point, as the charge moves through the origin, is equal to 80 k μT , find the charge Q.
1) A point charge Q moves on the x-axis in the positive direction with a speed of 240 m/s A field point is on the y-axis at y = 80 mm If the magnetic field produced at the field point, as the charge moves through the origin, is equal to 80 k μT , find the charge Q.
2) A point charge Q moves on the x-axis in the positive direction with a speed of 260 m/s. A field point is on the y-axis at y = 50 mm The magnetic field produced at the field point, as the charge moves through the origin, is equal to 0.80 k μT Find magnitude of the magnetic field at the field point when the charge is at x = 40 mm. 3)
3) A wire is formed into a circle with radius 10.00 mm. A current flows through the wire and causes a magnetic field of magnitude B at the center of the loop. If the wire is heated and expands by 8.00% what does the magnitude of the magnetic field become at the center of the loop?
4) A wire carrying a current is shaped in the form of a circular loop of radius 3.0 mm. If the magnetic field strength at its center is 1.1 mT with no external magnetic fields contributing to it, what is the magnitude of the current that flows through the wire?
5) A very long wire generates a magnetic field of 0.0040 × 10-4 T at a distance of 2.0 mm. What is the magnitude of the current?
6) How far from the center of a wire carrying a 2.0 A current does the magnetic field that results from the current have a magnitude of 4.0 × 10-4 T?
7) The magnitude of a magnetic field a distance 2.0 µm from a wire is 36.0 × 10-4 T How much current is flowing through the wire. Assume the wire is the only contributor to the magnetic field.
8) A long, straight wire with 3.0 A current flowing through it has magnetic field strength 1.0 T at its surface. If the wire has a radius R, where within the wire is the field strength 36.0% of 1.0 T Assume that the current density is uniform throughout the wire.
9) Two parallel, straight wires are 7.0 cm apart and each carries a 18.0 A current in the same direction. One wire is securely anchored, and the other is attached in the center to a movable cart. If the force needed to move the wire when it is not attached to the cart is negligible, with what force does the wire pull on the cart? Both wires are 50.0 m long.
10)A hollow cylinder with an inner radius of 4.0 mm and an outer radius of 30 mm
11)A solenoid 20 cm long is wound with 5000 turns of wire. What magnetic field is produced at the center of the solenoid when a current of 10 A flows?
12)A solenoid 3.0-cm long consists of 8942 loops of wire. If the magnetic field inside the solenoid is 1.0 T what is the magnitude of the current that flows through it?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
