Answered: MY NOTES ASK YOUR TEAC A 30-turn coil… | bartleby

Related questions

Question

MY NOTES
ASK YOUR TEACI
A 30-turn coil has a diameter of 19 cm. Find the magnitude of the emf induced in the coil (in V) if it is placed in a spatially uniform magnetic field of magnitude 0.3O T so that the face of the coil
makes the following angles with the magnetic field, and the magnetic field is reduced to zero uniformly in 0.2 s.
(a) 30°
(b) 60°
V
(c) 90°

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner’s 2.3 T field with his fingers pointing in the direction of the field. (a) Find the average emf induced in his wedding ring, given its diameter is 2 cm and assuming it takes 0.29 s to move it into the field.
A rectangular coil of 80 turns has dimensions of 34 x 52 cmcm and is located in a uniform 2 TT magnetic field. In 0.9 ss, the plane of the coil is rotated from a position where it makes an angle of 40° with the magnetic field to a position where it makes an angle of 64°. Calculate the average emf induced in the coil.
Near San Francisco, where the vertically downward component of the earth's magnetic field is 6.4 x 10-5 T, a car is traveling forward at 24 m/s. The width of the car is 2.4 m. Find the emf induced between the two sides of the car. If positive charge accumulates on the driver's side, the enter the emf as a positive number. If negative charge accumulates on the driver's side, the enter the emf as a negative number.
An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner's 2.10 T field with his fingers pointing in the direction of the field. His wedding ring has a diameter of 2.11 cm, and it takes 0.320 s to move it into the field. (a)What average current is induced in the ring if its resistance is 0.0100 Ω? (Enter the magnitude in amperes.) A (b)What average power is dissipated (in W)? W (c) What average magnetic field is induced at the center of the ring? (Enter the magnitude in teslas.)T
(d) Calculate the magnitude of torque (in Nm) exerted by the magnetic field on the coil at the instant when the emf is a maximum. N.m (e) What is the maximum power delivered to the coil (in W)? W (f) What If? If the coil is constructed from aluminum wire, what is the cross-sectional area of the wire (in m²)? The resistivity of aluminum is 2.82 x 10-8 Q. m. m² (g) What If? Suppose the coil now has the same number of turns, dimensions, and resistance, but the maximum current that the wire can now safely carry is 4.50 A. What now is the maximum angular speed (in rad/s) with which the coil can be rotated in the same 2.20 T magnetic field? rad/s
A 2.80-m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 0.370 m/s. The Earth's magnetic field in this region is of magnitude 50.0 µT and is directed northward and 53.0° below the horizontal. (a) Calculate the magnitude of the induced emf between the ends of the wire. (b) Determine which end is positive. O the east end O the west end O both O neither