please help me out with these!! ill give a like if correct.

Q.3 An emf may be induced in a coil by

a. moving one end of a bar magnet through the coil b. moving the coil toward one end of the bar magnet c. if the coil remains at rest in a nonuniform static magnetic field

Q.4 Wire 1 of 50 cm in length forms a one-turn loop, and a bar magnet is dropped through. Wire 2 of 100 cm in length forms a two-turn loop, and the same magnet is dropped through. Compare the magnitude of the induced voltages in these two cases. a. V2 = 2*V1 b. V1 = 2*V2 c. V1=V2#0

Q.5 Wire 1 of 50 cm in length forms a one-turn loop, and a bar magnet is dropped through. Wire 2 of 100 cm in length forms a two-turn loop, and the same magnet is dropped through. Compare the magnitude of the induced current in these two cases. a. I2 > I1 b. I1 = I2

Q.6 (pick three) Choose the correct statements

a. A AC generator's output voltage always has the same polarity b. A motor converts mechanical energy into electric energy whereas a generator does the reverse. c. A generator converts mechanical energy into electric energy whereas a motor does the reverse. d. A AC generator's output voltage always has the opposite polarity e. A DC generator's output voltage always has the same polarity

Q.7 A 120V, series-wound motor has a field resistance of 90 ohms and an armature resistance of 10 ohms. When it is operating at full speed, a back emf of 70 V is generated. What is the current drawn by the motor when the motor is operating at full speed?

a. 0.50A b. 1.20 A c .0.55A

Q. 8 The coil in an AC generator consists of 5 turns of wire, each of area A =0.10 m2, and the total resistance of the wire is 10.0 . The coil rotates in a 0.65-T magnetic field at a constant frequency of 50.0 Hz. What is the maximum induced emf in the coil?

a. 16.3 V b. 102 V c. 102 V d. 51 V