Explain the following
Explain the following:
(A) A blacksmith can reduce the magnetic strength of an iron bar by heating it.(B) You can reduce the magnetic field of a bar magnet by dropping it on a hard floor.
Homework Answers
A) As you heat a magnet you supply it with more thermal energy, so the individual electron spins (like tiny magnets themselves) become more likely to be in high-energy states, pointing oppositely to their neighbors. That means that they're less lined up so the total magnetism is reduced.
B) It will lose its magnetic field. The vibrations made from the drop charge the electrons and make them move out of the line that they were in, this causes the magnet to lose its magnetism.
Determine whether the statements are true or false and sort into the appropriate bins. True False...
Determine whether the statements are true or false and sort into the appropriate bins. True False Opposite poles repel. Heating a magnet makes it stronger When two nearby electrons in a material have opposite spins, their contributions to the local magnetic field tend to add up. When a magnet is broken in half, you end up with two smaller magnets. Magnetic domains are present even in an unmagnetized piece of iron. Every electron in an atom behaves like a tiny...
You have a magnet that is 2.3cm in diameter and 9cm long. At the north pole...
You have a magnet that is 2.3cm in diameter and 9cm long. At the north pole of this magnet, the magnetic field is 0.09T. You want to see if you can construct a solenoid with the same dimensions as the bar magnet with the same strength. If you constructed the solenoid out of 18-gauge wire (diameter 1.02mm), how many turns would it take when passing 2.2A through it to create the same magnetic field? Does this seem like a reasonable...
write in youtube (properties of magnet physics experiment) and watch the video 10:06 1) Describe the...
write in youtube (properties of magnet physics experiment) and
watch the video 10:06
1) Describe the field. What is the most unique characteristic of the field? 2) Draw a simplified version of the field pattern that emerged when the iron filings were placed on the bar magnet. Be sure to show the shape of the field. Place your compasses in your magnetic field in the spots illustrated below. Does your compass needle line up with the flux lines? Draw an...
The on-axis magnetic field strength 15cm from a small bar magnet is 4.8 μT a)What is the...
The on-axis magnetic field strength 15cm from a small bar magnet is 4.8 μT a)What is the bar magnet's magnetic dipole moment? b)What is the on-axis field strength 19cm from the magnet?
A particular Alnico (aluminum, cobalt, nickel, and iron) bar magnet (magnet A) has a mass of...
A particular Alnico (aluminum, cobalt, nickel, and iron) bar magnet (magnet A) has a mass of 10 g. It produces a magnetic field of magnitude 6e-05 T at a location 0.18 m from the center of the magnet, on the axis of the magnet. (a) Approximately what is the magnitude of the magnetic field of magnet A a distance of 0.36 m from the center of the magnet, along the same axis? (b) If you removed the original magnet, and...
5) Hold a magnaprobe above the magnet and follow the lines of magnetism around from one...
5) Hold a magnaprobe above the magnet and follow the lines of magnetism around from one pole to another. Observe the compass dial as you move along the line of magnetism. What is the shape of the magnetic field above the magnet? 6) Place the north end of a bar magnet distanced from the south end of another bar magnet. (as shown below) Place a piece of plastic over the two magnets and sprinkle iron filings in the region between...
1. The stack of magnets works as one big bar magnet. Do the poles change when...
1. The stack of magnets works as one big bar magnet. Do the poles change when you divide the magnet into pieces? 2. In step 3 of the experiment, do both sides of the magnet attract the metal surface? Explain how a single magnet can repel the rest of the stack, but still stick to the other surface. 3. How does the magnet attract something that is originally non?magnetic? 1. Describe the direction of the compass needle as you moved...
Hello everyone, I understand how the magnetic field vectors are oriented, but can someone help me...
Hello everyone, I understand how the magnetic field vectors
are oriented, but can someone help me on number 3. I'm not able to
get how to compared the magnitudes. Thank you!
1. At each of the four labeled points (A-D), sketch a vector representing the magnetic field around the bar magnet 2. A second bar magnet identical to the first one is placed to the left of point A. (See figure below At each of the four labeled points (A-D"),...
1)Which of the following physical manipulations of a system containing a loop of conductive wire and...
1)Which of the following physical manipulations of a system containing a loop of conductive wire and a magnetic field will result in the creation of electric current, thus transforming mechanical work into electrical energy? NOTE: You must provide an explanation for your answer to receive credit. a. Dropping a bar magnet through a loop of wire b. Rotating a loop of wire in an external magnetic field (assume the area vector of the loop and the direction of the magnetic field begin...
III. Mapping the Field Around a Bar Magnet: An Observation Experiment Purposes: Design an experiment to take approp...
III. Mapping the Field Around a Bar Magnet: An Observation Experiment Purposes: Design an experiment to take appropriate data to find a relationship. Construct a mathematical model to describe that relationship Description: Your task is to use a compass to map the magnetic field of a small magnet. Construct a circle of radius 10 cm on a clean sheet of paper, and mark points on the circle every 30°. Place the bar magnet so that its center is resting at...
Determine whether the statements are true or false and sort into the appropriate bins. True False Opposite poles repel. Heating a magnet makes it stronger When two nearby electrons in a material have opposite spins, their contributions to the local magnetic field tend to add up. When a magnet is broken in half, you end up with two smaller magnets. Magnetic domains are present even in an unmagnetized piece of iron. Every electron in an atom behaves like a tiny...
write in youtube (properties of magnet physics experiment) and
watch the video 10:06
1) Describe the field. What is the most unique characteristic of the field? 2) Draw a simplified version of the field pattern that emerged when the iron filings were placed on the bar magnet. Be sure to show the shape of the field. Place your compasses in your magnetic field in the spots illustrated below. Does your compass needle line up with the flux lines? Draw an...
A particular Alnico (aluminum, cobalt, nickel, and iron) bar magnet (magnet A) has a mass of 10 g. It produces a magnetic field of magnitude 6e-05 T at a location 0.18 m from the center of the magnet, on the axis of the magnet. (a) Approximately what is the magnitude of the magnetic field of magnet A a distance of 0.36 m from the center of the magnet, along the same axis? (b) If you removed the original magnet, and...
5) Hold a magnaprobe above the magnet and follow the lines of magnetism around from one pole to another. Observe the compass dial as you move along the line of magnetism. What is the shape of the magnetic field above the magnet? 6) Place the north end of a bar magnet distanced from the south end of another bar magnet. (as shown below) Place a piece of plastic over the two magnets and sprinkle iron filings in the region between...
Hello everyone, I understand how the magnetic field vectors
are oriented, but can someone help me on number 3. I'm not able to
get how to compared the magnitudes. Thank you!
1. At each of the four labeled points (A-D), sketch a vector representing the magnetic field around the bar magnet 2. A second bar magnet identical to the first one is placed to the left of point A. (See figure below At each of the four labeled points (A-D"),...
III. Mapping the Field Around a Bar Magnet: An Observation Experiment Purposes: Design an experiment to take appropriate data to find a relationship. Construct a mathematical model to describe that relationship Description: Your task is to use a compass to map the magnetic field of a small magnet. Construct a circle of radius 10 cm on a clean sheet of paper, and mark points on the circle every 30°. Place the bar magnet so that its center is resting at...
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