Lab: Electromagnetic Induction

Question 1

Throughout the reflection, make sure you have a copy of the Student Guide and your data tables. Use the drop-down menus to complete the statements. In this experiment, the was intentionally manipulated. This was the independent variable. The dependent variable measured was the .

Revolt · Accepted Answer

magnet polarity; Selection 1: magnet polarity; Selection 2: induced current

Question 2

✔ induced currentmagnet polaritymagnet strength

Revolt · Accepted Answer

induced current

Question 3

0✔ 248

Revolt · Accepted Answer

2

Question 4

the same✔ oppositedoubled

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✔ opposite

Question 5

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.

Revolt · Accepted Answer

8; Selection 1: 2; Selection 2: 2; Selection 3: 2

Question 6

In situation A, a bar magnet moves toward a stationary coil at a constant speed, and the maximum current is recorded. If the magnet moves again toward the coil in situation B at the same speed, from the same direction, what would explain the different current reading?

Revolt · Accepted Answer

reversing the magnet polarity

Question 7

Use the drop-down menus to complete each description about the experimental results.

Revolt · Accepted Answer

0; First, we verified that magnet movement would induce a current. Each time the magnet moved near the wire loop, whether it was moving forward or in reverse, a current registered. When the magnet was st: 0; Under normal magnet polarity, whenever the magnet was moving toward the loop, the induced current had a value, and a value if the magnet was moving in reverse. Under reversed polarity, we found the re: negative; Under normal magnet polarity, whenever the magnet was moving toward the loop, the induced current had a value, and a value if the magnet was moving in reverse. Under reversed polarity, we found the re: positive; Under normal magnet polarity, whenever the magnet was moving toward the loop, the induced current had a value, and a value if the magnet was moving in reverse. Under reversed polarity, we found the re: opposite

Question 8

A normal polarity magnet moves toward a stationary coil at 20 cm/s, and induces a maximum current of –8 mA. Which scenarios would induce the same maximum current and the same current direction (–), if the distance between the two objects is the same? Check all that apply.a stationary magnet and a coil rotating at 20 cm/s rather than movingboth the magnet and the coil moving toward each other at 10 cm/s eacha reversed polarity magnet moving toward a stationary coil at 10 cm/sa normal polarity magnet stationary with a coil approaching at 15 cm/sa reversed polarity magnet moving away from the coil at 20 cm/s

Revolt · Accepted Answer

both the magnet and the coil moving toward each other at 10 cm/s each; a reversed polarity magnet moving away from the coil at 20 cm/s

Question 9

Which actions are ways to manipulate the magnet and wire loop in order to induce a current? Check all that apply.Move the magnet forward.Move the loop away from the magnet.Place the loop right next to the magnet, both stationary.Move the loop sideways.Move the magnet and loop in the same direction, at the same speed, at the same time.Rotate the loop in place.

Revolt · Accepted Answer

Move the magnet forward.; Move the loop away from the magnet.; Move the loop sideways.; Rotate the loop in place.

Question 10

0✔ 248

Revolt · Accepted Answer

2

Lab: Electromagnetic Induction Answers

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