How many turns is required to be wounded in secondary coil if the primary coil consist 2000 turns with 22 AWG copper wire? Input Voltage = 220V ,Input Current = 1A. transformer is expected to work with 90% efficiency & expected to get 12V 5A output.​

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90