Homework Answers
In this case, the area is reduced, so the induced there will be less induced current. The magnetic force decreases and almost no braking force.
Answer: Almost no braking force.
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Pivot A metal plate with slots in it swings through the same strong magnetic field as...
A proton moving to the right enters a magnetic field. If the proton is pushed upward,...
A proton moving to the right enters a magnetic field. If the proton is pushed upward, then the magnetic field must be a. upward b. downward c. into the page d. out of the page If an electron moves through the same magnetic field as in the previous question, what will happen to the electron? a. it will be pushed upward with an equal force b. it will be pushed upward with a different force because of the different mass...
A charge particle enters a uniform magnetic field and follows the circular path shown in the...
A charge particle enters a uniform magnetic field and follows the circular path shown in the drawing. f (a) Is the particle positively or negatively charged? O positive O negative O electrically neutral Why? This answer has not been graded yet (b) The particle's speed is 110 m/s, the magnitude of the magnetic field is 0.46 T, and the radius of the path is 960 m. Determine the mass of the particle, given that its charge has a magnitude of...
1. A loop of wire passes through a constant magnetic field going out of the page....
1. A loop of wire passes through a constant magnetic field going out of the page. As the loop begins to enter the magnetic field what direction will the current be induced? Counter clockwise Into the page Out of the page In a zig zag around the earth Clockwise 2. Faraday’s low of induction states that the emf induced in a loop of wire is proportional to (magnetic flux)/(time) (time)/(magnetic flux) (magnetic flux)(magnetic field) (current)/(time) (magnetic flux)(area) 3. The number...
An electron moves in the negative x direction, through a uniform magnetic field that is in...
An electron moves in the negative x direction, through a uniform magnetic field that is in the negative y direction. The magnitude force on the electron is: a) is the negative x direction B) in the positive y direction C) in the negative y direction D) in the positive z direction E) in the negative z direction At a distance R from a current carrying wire, what is the direction of the magnetic field relative to the wire? A) in...
1. When charged particles move parallel to the direction of a magnetic field, then according to...
1. When charged particles move parallel to the direction of a magnetic field, then according to the magnetic force equation, the particles will travel in a a. straight line b. circular path c. helical path d. loop 2. A 3.0-m length of wire is stretched horizontally between two vertical posts. The wire carries a current of 54.9 A and experiences a magnetic force of 20.6 N. If the magnetic field has a strength of 0.25 T at the location of...
Chapter 13 Temperature and Kinetic Theory D) As shown in the figure, a bimetallic strip, consisting...
Chapter 13 Temperature and Kinetic Theory D) As shown in the figure, a bimetallic strip, consisting of metal G on the top and metal on the bottom, is rigidly attached to a wall at the left. The coefficient of linear thermal expansion for metal G is greater than that of metal H. If the strip is uniformly heated, it will A) curve upward. B) curve downward. C) remain horizontal, but get longer. D) remain horizontal, but get shorter. E) bend...
For many technical applications, it is desirable to have a uniform magnetic field, i.e. a field...
For many technical applications, it is desirable to have a uniform magnetic field, i.e. a field with the same strength and direction at every point in a certain region of space. As you discovered in the last checkpoint, this can be achieved with a solenoid, which is constructed by "stacking" many loops of wire, each with the same current. The superposition of the magnetic fields of the single loops creates a strong, nearly uniform field inside the solenoid, whereas the...
Bob places a neutrally charged conducting ball next to a large, charged plate. The conducting ball...
Bob places a neutrally charged conducting ball next to a large, charged plate. The conducting ball is weakly attracted to the plate. What is the net charge on the plate? 1. a) Positive b) Negative c) Neutral (i.e., zero charge) d) Either positive or negative, but it is impossible to tell which A +1 C charge is at the origin, and a second +1 C charge is at position (x,y)-(2 m, 0). How much work is required to move the...
Procedure: Materials: 1. apparatus 2. 2 pieces of metal track 3. plastic or metal ball 4....
Procedure: Materials: 1. apparatus 2. 2 pieces of metal track 3. plastic or metal ball 4. timer 5. meter stick 6. micrometer 7. 2 photogates Assemble your ramp as shown in Figure (1) in the next page. Then set up photogates in location 2 and 3. Measure the diameter (in m) of the metal balls (you will need it for speed calculations). Then, measure the weight (mass) of the ball (in kg). To have a better measurement of the time,...
T/F (1) Additives added to ethanol will have the same effect on boiling point as the...
T/F
(1) Additives added to ethanol will have the same effect on boiling point as the same amount of additives added to water Ethanol changes its solution boiling point with additive mass fraction of 0.15 more than water changes its boiling point with a mass fraction of 0.25 If the activity coefficient of solute A in a solution is equal to 1, A has little to no preference to other molecules around it in solution It is likely that flavors...
A charge particle enters a uniform magnetic field and follows the circular path shown in the drawing. f (a) Is the particle positively or negatively charged? O positive O negative O electrically neutral Why? This answer has not been graded yet (b) The particle's speed is 110 m/s, the magnitude of the magnetic field is 0.46 T, and the radius of the path is 960 m. Determine the mass of the particle, given that its charge has a magnitude of...
An electron moves in the negative x direction, through a uniform magnetic field that is in the negative y direction. The magnitude force on the electron is: a) is the negative x direction B) in the positive y direction C) in the negative y direction D) in the positive z direction E) in the negative z direction At a distance R from a current carrying wire, what is the direction of the magnetic field relative to the wire? A) in...
Chapter 13 Temperature and Kinetic Theory D) As shown in the figure, a bimetallic strip, consisting of metal G on the top and metal on the bottom, is rigidly attached to a wall at the left. The coefficient of linear thermal expansion for metal G is greater than that of metal H. If the strip is uniformly heated, it will A) curve upward. B) curve downward. C) remain horizontal, but get longer. D) remain horizontal, but get shorter. E) bend...
For many technical applications, it is desirable to have a uniform magnetic field, i.e. a field with the same strength and direction at every point in a certain region of space. As you discovered in the last checkpoint, this can be achieved with a solenoid, which is constructed by "stacking" many loops of wire, each with the same current. The superposition of the magnetic fields of the single loops creates a strong, nearly uniform field inside the solenoid, whereas the...
Bob places a neutrally charged conducting ball next to a large, charged plate. The conducting ball is weakly attracted to the plate. What is the net charge on the plate? 1. a) Positive b) Negative c) Neutral (i.e., zero charge) d) Either positive or negative, but it is impossible to tell which A +1 C charge is at the origin, and a second +1 C charge is at position (x,y)-(2 m, 0). How much work is required to move the...
Procedure: Materials: 1. apparatus 2. 2 pieces of metal track 3. plastic or metal ball 4. timer 5. meter stick 6. micrometer 7. 2 photogates Assemble your ramp as shown in Figure (1) in the next page. Then set up photogates in location 2 and 3. Measure the diameter (in m) of the metal balls (you will need it for speed calculations). Then, measure the weight (mass) of the ball (in kg). To have a better measurement of the time,...
T/F
(1) Additives added to ethanol will have the same effect on boiling point as the same amount of additives added to water Ethanol changes its solution boiling point with additive mass fraction of 0.15 more than water changes its boiling point with a mass fraction of 0.25 If the activity coefficient of solute A in a solution is equal to 1, A has little to no preference to other molecules around it in solution It is likely that flavors...
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Question 501 pts
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