4) (20 points) A circular coil has a diameter of 20 cm, 40 loops, and a...
A circular loop in the plane of a paper lies in a 0.65 T magnetic field pointing into the paper. The loop's diameter changes from 19.0 cm to 6.6 cm in 0.51 sec. What is the magnitude of the average induced emf? What is the average induced current if the coil resistance is 3.1 Ω ?
A circular loop in the plane of a paper lies in a 0.75 T magnetic field pointing into the paper. The loop's diameter changes from 18.5 cm to 5.8 cm in 0.55 s . What is the magnitude of the average induced emf? What is the average induced current if the coil resistance is 4.7 Ω ?
A circular loop in the plane of a paper lies in a 0.85 T magnetic field pointing into the paper. The loop's diameter changes from 22.0 cm to 5.2 cmin 0.54 s . What is the magnitude of the average induced emf? and also what is the average induced current if the coil resistance is 3.9 ? ?
A circular loop in the plane of a paper lies in a 0.65 T magnetic field pointing into the paper. The loop's diameter changes from 19.0 cm to 6.0 cm in 0.49 s . A.What is the direction of the induced current? B.What is the magnitude of the average induced emf? C.What is the average induced current if the coil resistance is 3.3 Ω ?
A circular loop in the plane of a paper lies in a 0.65 T magnetic field pointing into the paper. The loop's diameter changes from 23.0 cm to 5.2 cm in 0.50 s . Part a) What is the direction of the induced current? Part b)What is the magnitude of the average induced emf? Part c) What is the average induced current if the coil resistance is 3.7 Ω ?
A circular loop in the plane of a paper lies inca0.65 T magnetic field pointing into the paper.The loop's diameter changes from 17.5 cm to 6.8 cm in 0.51 s. a.what is the direction of the induced current?b.what is the magnitude of the magnitude of the average i duced emf?c.what is the average induced current if the coil resistance is 21 ohm
A circular loop in the plane of the paper lies in a 0.65 T magnetic field pointing into the paper. The resistance of the coil is 2.20 Ω. If the loop's diameter changes from 20.0 cm to 6.00 cm in 0.50 s, what is the average induced current in milli-amps?
A circular coil 15.0 cm in diameter and containing nine loops lies flat on the ground. The Earth's magnetic field at this location has magnitude 5.00×10-5T and points into the Earth at an angle of 53.0* below a line pointing due north. A 7.80-A clockwise current passes through the coil. Determine the torque on the coil.
A circular loop in the plane of the paper lies in a 0.90 T magnetic field pointing into the paper. The resistance of the coil is 1.80 Ω. If the loop's diameter changes from 24.5 cm to 6.00 cm in 0.30 s, what is the average induced current in milli-amps? Answer in mA.
A circular loop in the plane of the paper lies in a 0.68 T magnetic field pointing into the paper. What is the magnitude of the average induced emf? If the coil resistance is 2.1 Ω , what is the average induced current?