Answer Happy

4. In Part 1 of this experiment, which type of motion induced larger currents: moving fast or moving slow? Explain why this is the case. 5. In Part 2 of this experiment, what happened to the galvanometer deflection as you increased the current in the primary coil?
Primary Current (A) 0.2 0.4 0.6 0.8 1.0 Primary Current (A) 0.2 0.4 0.6 0.8 1.0 Table 2.3: Magnetic Induction Based on External Field Strength - Increasing Field ("Closing") Sign of Galvanometer Deflection Sign of Galvanometer Deflection Amount of Iron Core Remaining + Whole Core 2/3 Core 1/3 Core No Core + + + Impact of Iron Core on Magnetic Induction + of Current CW or CCW CW CW CW + сю CW Direction of Current CW or CCW CCW CCW COW LOW CCW Current (UA) Direction of Current CW or CCW сси 18 40 24 Table 2.4: Impact of Iron Core - Increasing Field ("Closing") Sign of Galvanometer Deflection + + + CCW CCW CCW Induced Current (μµA) 8 8 20 20 42 Induced Current (μA) 40 10
Magnet on Side of Coil Right Right Right Right Right Right Right Right Left Left Left Left Left Left Left Left Pole Towards Coil North North North North South South South South North North North North South South South South Direction of Magnet Motion Into Coil Out of Coil Into Coil Out of Coil Into Coil Out of Coil Into Coil Out of Coil Into Coil Out of Coil Into Coil Out of Coil Into Coil Out of Coil Into Coil Out of Coil Speed of Magnet Motion Slow Slow Fast Fast Slow Slow Fast Fast Slow Slow Fast Fast! Slow Slow Fast Fast Sign of Galvanometer Deflection + +1++1+ 1 + - + + + 1 Direction of Current CW or CCW CCW CW CCW CW CBW SCW CW CCW CW CCW CW CCW CCW CW CCW CW Induced Current (μA) 4 -20 10 -12 6 -10 - 14 20 10 18 10 18 8 10 20