Question

signar produced from each magnet-coin interaction Questions 1. Create and fill out a data table, like the one shown here, with all eight combinations of magnet ends, direction and coil sides. Slowly Moderately Quickly North end of magnet (red) into side A North end of magnet (red) out of side A 2. You should have observed that the voltage peaks with different signs depending of the magnet side, the coil side, and the direction of motion. Explain the sign for each. 3. You should have observed that the voltage peaks with different magnitudes depending on the speed of your motions. Explain why. 4. Would the results have been any different if the magnet was stationary and the coils where moved? Explain why or why not.

Answer 1

Table SLU. undition Direction of unent 1. North and towards coil. anticlockwise 2. North and away from coil. clockwise. 3. South and towards coil. Hockwise a. south end away from anticlockwise the core. 5. North and howards will clockmise Baukside) 6. Booth end away from whe anticlockwise (Backside) 7. Smith end toward coil Chackside) anticlockwise 4. South end away cue (backside) elockwise. 2: Changing magnetic Hux causes electromotive forces. But the coment produces by the induced emb flows in the direct on that opposes the change of bus induced in amf. Ef you bring the north end of magnets towards the coil, the induced emt produces a curent who se associated magnetic need nas its north and pointing towards the current so, this is the Reason. 3. Yes the voltage Peaks with different magnitude depending upon the speed of motion Because the rate of change of Hux depends in it. 49 = Bd6 = B(4x).y = B(vdt) 5. 4. No the Result would not have been different it the magnet was stationary & the coil moved. It still would have led to change of magnetic fluxe which in turn led to change in Emf (faraday's law) & prodiretion of Indrced current . Clenz's Law).