tefer to the figure below. What is the emf induced when a 6.61-cm conducting rod attached to a U-shaped conductor moves at 1.96 m/s perpendicular to a magnetic field of strength 14 T? Please write the numeric answer in terms of V volts). Normal format with 3 SF. B (outward)

A 0.220 m radius, 506 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a uniform magnetic field. (This is 60 rev/s.) Find the magnetic field strength needed to induce an average emf of 10,000 V. T

4. A wire is bent into the shape shown in Figure 4. If a = 20 cm and I = 12 A, calculate the magnetic field at point P. Ans.: 8.26 x 10-5 T, out of page CO a/2 a a/4 P. Figure 4.

A. Find the current in the loop at t = 1.5 s. B. Find the current in the loop at t = 2.5 s.

Draw a magnetic circuit with 2 coils. The 1st coil with 50 turns and the 2nd coil with 150 turns. If coil 1 carry 2 A and coil 2 carry 1 A Find: A. The total Magneto motive force when the coils adding each other and draw the flux direction. B. The total Magneto motive force when the coils opposing each other and draw the flux direction.

Needs Complete typed solution with 100 % accuracy.

Suppose that the light bulb in Figure 22.4b is a 60.0-W bulb with a resistance of 210 Ω. The magnetic field has a magnitude of 0.247 T, and the length of the rod is 1.30 m. The only resistance in the circuit is that due to the bulb. What is the shortest distance along the rails that the rod would have to slide for the bulb to remain lit for one-half second?

14. A wire is oriented into a loop that has a diameter of 1 cm. This loop is then pulled closed in 0.5 s. If there was a magnetic field directed through the loop of 0.25 T, what emf is induced?

(Hand by written ans.)A circular loop (10 turns) with a radius of 29 cm is in a magnetic field that oscillates uniformly between 0.95 T and 0.45 T with a period of 1.00 s. a. How much time is required for the field to change from 0.95 T to 0.45 T? b. What is the cross-sectional area of one turn of the loop? c. Assuming that the loop is perpendicular to the magnetic field, what is the induced emf in the loop? I have a test and i am revising and I got 2 answers for this question. could you please explain each step thoroughly for me to understand.

1. A student uses a coil of radius 14 cm with 90 windings.a) Calculate the expected slope for a plot of magnetic field vs current in this coil.b) She performs the lab and measures a slope of 4.2 ́ 10-4 T/A. Based on this slope, what valuedoes she calculate for μo ?c) Calculate the percent error between her measured value of μo and the theoretical value.