A solenoid 3.0 cm long consists of 9000 loops of wire. If the magnetic field inside the solenoid is measured as 1.0 T, what is the magnitude of the current that flows through it? a 0.037 A b 0.37 A c 2.65 A d 3.05 A e 0.58 A

Two parallel, conducting wires carry oppositely directed currents of 3.00 A and 5.00 A as shown the diagram below. Find the strength of the magnetic field at y = 6.00 cm       a. 0.59 µT   b. 1.67 µT   c. 1.1 µT   d. 1.4 µT   e. 0.72 µT

A long straight wire carries a current of 5.00 A, flowing in the upward direction.  What is the magnetic field produced at a location 10.0 cm to the right of the wire?     1.00 x 10-5 T, into the screen (away from you)     2.00 x 10-5 T, out of the screen (toward you)     1.00 x 10-5 T, out of the screen (toward you)     2.00 x 10-5 T, into the screen (away from you)

A proton is accelerated from rest through 2.0 kV. It then enters a uniform magnetic field of 0.30 T that is oriented perpendicular to its direction of motion. What is the radius of the path the proton follows in the magnetic field? O 11 cm O 11 mm O 22 cm O 1.1 m O 22 mm

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A student takes a strand of copper wire and forms it into a circular loop of circumference of 0.375 m.0.375 m. The student then places the loop in a uniform, constant magnetic field of magnitude 0.00263 T0.00263 T that is oriented perpendicular to the face of the loop. Pulling on the ends of the wire, they reduce the circumference of the loop to 0.147 m0.147 m in a time interval of 0.632 s.0.632 s. Assuming that the loop remains circular as it shrinks, what is the magnitude of the average emf E induced around the loop during this time interval?

A segment of wire of total length 2.0 m is formed into a circular loop having 12 turns. If the wire carries a 1.2 A current, determine the magnitude of the magnetic field at the center of the loop. a. 340.70 µT O b. 196.70 µT c. 400.32 µT d. 177.12 µT e. 28.39 μΤ

64.0 cm In an experiment, a particle that has a mass of 6.80 x 1027 kg enters a uniform and out-of- the-page direction magnetic field of 0.350 T and is bent in a semi-circle of diameter 64.0 cm as shown in the figure. If the particle is moving with a speed of 5.40 x 105 m/s, what is the magnitude and sign of particle's charge? O +1.64 x 10-19 C O-1.31 x 10-18 C +8.85 x 10-13 C + 1.31 x 10-18 C 100 O O Not enough information - 8.85 x 10-13 C + 6.10 x 10-18 C - 6.10 x 10-18 C +3.28 x 10-19 C 1.64 x 10-17 C - 3.28 x 10-1⁹ C

A toroid with N turns carries a current I. The toroid is made of a paramagnetic material with susceptibility χ. The magnetic field inside the toroid (a < r < b ) is? a.   B=(1−χ)(μ0NI/4πr) b.   B=(1+χ)(μ0NI/4πr) c.   B=(1+χ)(μ0NI/2πr) d.   B=(1−χ)(μ0NI/2πr)

A 4927 turn solenoid is carrying a current of 11.1 A. The solenoid is 67.3 cm long. What is the magnitude of the magnetic field (in milli-tesla) through the center of the solenoid?