Magnetic fields, magnetic forces and electromagnetic induction

Use this for “A 200-turn coil of area 0.02 m² sits in a field that grows from 0.1 T to 0.5 T in 0.1 s. What emf is induced?”

Use this for “A 0.25 m wire carrying 5 A crosses a 0.40 T field at 90°. What force acts on it? What if the angle is 30°?”

Use this for “A 5 μC charge moves at 400 m/s across a 0.3 T field. What force acts on it? What if it moves at 30° to the field?”

Use this for “A proton moves at 3 × 10⁶ m/s square to a 0.2 T field. What force acts on it, what is the radius of its circle, and how long is one lap?”

Use this for “A transformer steps 120 V down with 400 primary turns and 20 secondary turns. What voltage comes out, and what current if 0.1 A goes in?”

Use this for “A generator turns. What energy change happens, and why does it make a current?”

Use this for “One magnet is turned round. How do the size and direction of the force change?”