3. A 0.25 m long solenoid contains 10,000 loops of wire. The solenoid has a radius of 0.02 m. The current flowing through the solenoid is decreased from 2.5 A to 0.5 A in 0.025 s. Surrounding this solenoid is a 24 loop coil of wire of radius 0.1 m and resistance 3.6 2. (See figure below.) (a) Find the initial and final values of the magnetic field in the solenoid. (b) (Note that this part asks for the change in magnetic flur not the rate of change of magnetic flux in this part. Also for this part sign matters.) What is the change in magnetic flux through the solenoid? (c) What is the induced EMF in the larger coil? (d) What is the induced current in the larger coil?

3. A 0.25 m long solenoid contains 10,000 loops of wire. The solenoid has a radius of 0.02 m. The current flowing through the solenoid is decreased from 2.5 A to 0.5 A in 0.025 s. Surrounding this solenoid is a 24 loop coil of wire of radius 0.1 m and resistance 3.6 2. (See figure below.) (a) Find the initial and final values of the magnetic field in the solenoid. (b) (Note that this part asks for the change in magnetic flur not the rate of change of magnetic flux in this part. Also for this part sign matters.) What is the change in magnetic flux through the solenoid? (c) What is the induced EMF in the larger coil? (d) What is the induced current in the larger coil?