Q1. Answer the following questions: A) Consider the discussion of the Earth’s ma
ID: 1865453 • Letter: Q
Question
Q1. Answer the following questions:
A) Consider the discussion of the Earth’s magnetic field and its north magnetic pole. If we imagine the Earth as a big bar magnet, considering the behavior of the magnetic field lines, the north pole of the magnet would be at
B) A compass needle is a small bar magnet that is used to determine the direction of the magnetic field in a region of space. If you are near a magnetic material and the north pole of the needle points to the right, the direction of the magnetic field in that region of space is actually
down.
C) Javier and Flora are conducting this lab activity and determine that the red side of their 3D compass probe is actually the north pole of the probe magnet and that the blue side is the south pole of the probe magnet. When they bring the probe near the north pole of the bar magnet, the probe magnet should
spin wildly out of control.
D) An EMF and current can be induced in a loop of wire if the magnetic flux through the loop is changing. Which of the following is NOT a means by which the magnetic flux through a loop would change?
Arrange a magnetic field with a component perpendicular to the area of the loop and increase or decrease the area of the loop.
F) Javier and Flora observe that when they move the south pole of the bar magnet toward the loop, the reading on the voltmeter is negative, whereas when they moved the north end of the bar magnet toward the loop the reading was positive. While this only measures the EMF generated in the loop, this means that the current that is flowing in the loop in each case must be
the Earth’s south magnetic pole.Explanation / Answer
Answer:
A) Consider the discussion of the Earth’s magnetic field and its north magnetic pole. If we imagine the Earth as a big bar magnet, considering the behavior of the magnetic field lines, the north pole of the magnet would be at the Earth’s south magnetic pole.
B) A compass needle is a small bar magnet that is used to determine the direction of the magnetic field in a region of space. If you are near a magnetic material and the north pole of the needle points to the right, the direction of the magnetic field in that region of space is actually to the left.
C) Javier and Flora are conducting this lab activity and determine that the red side of their 3D compass probe is actually the north pole of the probe magnet and that the blue side is the south pole of the probe magnet. When they bring the probe near the north pole of the bar magnet, the probe magnet should orient itself so that the blue side points toward the bar magnet.
D) An EMF and current can be induced in a loop of wire if the magnetic flux through the loop is changing. Which of the following is NOT a means by which the magnetic flux through a loop would change?
Arrange a magnetic field with a component perpendicular to the area of the loop and increase or decrease the area of the loop.
F) Javier and Flora observe that when they move the south pole of the bar magnet toward the loop, the reading on the voltmeter is negative, whereas when they moved the north end of the bar magnet toward the loop the reading was positive. While this only measures the EMF generated in the loop, this means that the current that is flowing in the loop in each case must be in opposite directions.
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