Question

use the drop-down menus and your data table a from your student guide to complete the statements. make sure you use the values from the lightbulb in the original position. once the magnet moved closest to the loop in the forward direction, under normal magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was ▼ ma. once the magnet moved closest to the loop in the reverse direction, under normal magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was ▼ ma. once the magnet moved closest to the loop in the forward direction, under reversed magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was ▼ ma. drop-down options: 0, 2, 4, 8

Explanation:

To solve this, we refer to the principles of electromagnetic induction (Faraday's Law) and the data from the experiment (Data Table A in the Student Guide). The magnitude of induced current depends on the rate of change of magnetic flux, but for the given setup (with a lightbulb in original position and magnet movement), the typical experimental results for such a setup (like in a standard electromagnetic induction experiment with a coil, magnet, and galvanometer) show that:

For the first statement (magnet forward, normal polarity):

From typical experimental data (assuming the setup), when the magnet moves closest in forward direction (normal polarity), the induced current magnitude is often around 4 mA (this depends on the specific experiment, but following standard lab data for such setups).

For the second statement (magnet reverse, normal polarity):

When the magnet moves in reverse direction (same normal polarity), the induced current magnitude (in terms of absolute value, since direction reverses but magnitude here is asked) is also around 4 mA (as the rate of flux change magnitude is similar, just direction of current reverses, but magnitude remains same for same speed/movement).

For the third statement (magnet forward, reversed polarity):

When the magnet’s polarity is reversed and moved forward, the induced current magnitude (absolute value) is also around 4 mA (since the magnitude of flux change rate is same, only direction of current reverses, but magnitude of current remains the same as long as the movement and setup are consistent).

Final Answers (assuming standard lab data for this setup):

1. Once the magnet moved closest to the loop in the forward direction, under normal magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was $\boldsymbol{4}$ mA.
2. Once the magnet moved closest to the loop in the reverse direction, under normal magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was $\boldsymbol{4}$ mA.
3. Once the magnet moved closest to the loop in the forward direction, under reversed magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was $\boldsymbol{4}$ mA.

(Note: If the specific Data Table A has different values, those should be used. The above is based on typical experimental results for electromagnetic induction experiments with magnets and coils.)

Answer:

To solve this, we refer to the principles of electromagnetic induction (Faraday's Law) and the data from the experiment (Data Table A in the Student Guide). The magnitude of induced current depends on the rate of change of magnetic flux, but for the given setup (with a lightbulb in original position and magnet movement), the typical experimental results for such a setup (like in a standard electromagnetic induction experiment with a coil, magnet, and galvanometer) show that:

For the first statement (magnet forward, normal polarity):

From typical experimental data (assuming the setup), when the magnet moves closest in forward direction (normal polarity), the induced current magnitude is often around 4 mA (this depends on the specific experiment, but following standard lab data for such setups).

For the second statement (magnet reverse, normal polarity):

When the magnet moves in reverse direction (same normal polarity), the induced current magnitude (in terms of absolute value, since direction reverses but magnitude here is asked) is also around 4 mA (as the rate of flux change magnitude is similar, just direction of current reverses, but magnitude remains same for same speed/movement).

For the third statement (magnet forward, reversed polarity):

When the magnet’s polarity is reversed and moved forward, the induced current magnitude (absolute value) is also around 4 mA (since the magnitude of flux change rate is same, only direction of current reverses, but magnitude of current remains the same as long as the movement and setup are consistent).

Final Answers (assuming standard lab data for this setup):

1. Once the magnet moved closest to the loop in the forward direction, under normal magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was $\boldsymbol{4}$ mA.
2. Once the magnet moved closest to the loop in the reverse direction, under normal magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was $\boldsymbol{4}$ mA.
3. Once the magnet moved closest to the loop in the forward direction, under reversed magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was $\boldsymbol{4}$ mA.

(Note: If the specific Data Table A has different values, those should be used. The above is based on typical experimental results for electromagnetic induction experiments with magnets and coils.)