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Purchase a calculating spreadsheet that will work for EVERY question in Chapter 19 Webassign

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CALCULATOR 19-1

1. Consider the following figure.

(a) Find the direction of the force on a proton (a positively charged particle) moving through the magnetic fields in the figure, as shown.

Field Force Direction

(a) _____

(b) _____

(c) _____

(d) _____

(e) _____

(f) _____

(b) Repeat part (a), assuming the moving particle is an electron.

Field Force Direction

(a) _____

(b) _____

(c) _____

(d) _____

(e) _____

(f) _____

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2. Find the direction of the magnetic field acting on the positively charged particle moving in the various situations shown in the figure below if the direction of the magnetic force acting on it is as indicated.

Figure (a)

Figure (b)

Figure (c)

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3. An electron is accelerated through 2600 V from rest and then enters a region where there is a uniform 1.90 T magnetic field. What are the maximum and minimum magnitudes of the magnetic force acting on this electron?

(a) maximum

_____N

(b) minimum.

_____N

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4. A proton moving at 5.60 X 10^6 m/s through a magnetic field of magnitude 1.80 T experiences a magnetic force of magnitude 7.40 X 10^-13 N. What is the angle between the proton's velocity and the field? (Enter both possible answers from smallest to largest. Enter only positive values between 0 and 360.)

smaller value

_____°

larger value

_____°

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5. A current I = 17 A is directed along the positive x-axis and perpendicular to a magnetic field. A magnetic force per unit length of 0.16 N/m acts on the conductor in the negative y-direction. Calculate the magnitude and direction of the magnetic field in the region through which the current passes.

_____T

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6. A wire carries a current of 5.0 A in a direction that makes an angle of 35.0° with the direction of a magnetic field of strength 0.300 T. Find the magnetic force on a 7.00 m length of the wire.

_____N

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7. A wire is formed into a circle having a diameter of 10.7 cm and is placed in a uniform magnetic field of 2.78 mT. The wire carries a current of 5.00 A. Find the maximum torque on the wire.

_____µN · m

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8. A current of 29.0 mA is maintained in a single circular loop with a circumference of 2.40 m. A magnetic field of 0.450 T is directed parallel to the plane of the loop. What is the magnitude of the torque exerted by the magnetic field on the loop?

_____ N · m

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9. A rectangular loop consists of 102 closely wrapped turns and has dimensions 0.400 m by 0.300 m. The loop is hinged along the y-axis, and the plane of the coil makes an angle of 30.0° with the x-axis (see figure below).

What is the magnitude of the torque exerted on the loop by a uniform magnetic field of 0.760 T directed along the x-axis when the current in the windings has a value of 1.20 A in the direction shown?

_____N · m

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10. An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.240 T. If the kinetic energy of the electron is 3.20 X 10^-19 J, find the speed of the electron and the radius of the circular path.

(a) the speed of the electron

_____m/s

(b) the radius of the circular path

_____µm

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11. A proton travels with a speed of 4.90 X 10^6 m/s at an angle of 62° with the direction of a magnetic field of magnitude 0.150 T in the positive x-direction.

(a) What is the magnitude of the magnetic force on the proton?

_____N

(b) What is the proton's acceleration?

_____m/s^2

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12. In each of parts (a), (b), and (c) of the figure below, find the direction of the current in the wire that would produce a magnetic field directed as shown.

part (a)

part (b)

part (c)

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13. Two long, parallel wires separated by 5.00 cm carry currents in opposite directions. The current in one wire is 1.30 A, and the current in the other is 3.40 A.

(a) Find the magnitude of the force per unit length that one wire exerts on the other.

_____N/m

(b) Is the force attractive or repulsive?

__attractive

__repulsive

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14. A long solenoid that has 1,190 turns uniformly distributed over a length of 0.395 m produces a magnetic field of magnitude 1.00 X 10^-4 T at its center. What current is required in the windings for that to occur?

_____mA

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15. A certain superconducting magnet in the form of a solenoid of length 0.40 m can generate a magnetic field of 12.0 T in its core when its coils carry a current of 120 A. The windings, made of a niobium-titanium alloy, must be cooled to 4.2 K. Find the number of turns in the solenoid.

_____turns

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Purchase a calculating spreadsheet that will work for EVERY question in Chapter 19 Webassign

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CALCULATOR 19-1

1. Consider the following figure.

(a) Find the direction of the force on a proton (a positively charged particle) moving through the magnetic fields in the figure, as shown.

Field Force Direction

(a) _____

(b) _____

(c) _____

(d) _____

(e) _____

(f) _____

(b) Repeat part (a), assuming the moving particle is an electron.

Field Force Direction

(a) _____

(b) _____

(c) _____

(d) _____

(e) _____

(f) _____

Download Calculator For Problem #1 (Free)

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2. Find the direction of the magnetic field acting on the positively charged particle moving in the various situations shown in the figure below if the direction of the magnetic force acting on it is as indicated.

Figure (a)

Figure (b)

Figure (c)

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3. An electron is accelerated through 2600 V from rest and then enters a region where there is a uniform 1.90 T magnetic field. What are the maximum and minimum magnitudes of the magnetic force acting on this electron?

(a) maximum

_____N

(b) minimum.

_____N

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4. A proton moving at 5.60 X 10^6 m/s through a magnetic field of magnitude 1.80 T experiences a magnetic force of magnitude 7.40 X 10^-13 N. What is the angle between the proton's velocity and the field? (Enter both possible answers from smallest to largest. Enter only positive values between 0 and 360.)

smaller value

_____°

larger value

_____°

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5. A current I = 17 A is directed along the positive x-axis and perpendicular to a magnetic field. A magnetic force per unit length of 0.16 N/m acts on the conductor in the negative y-direction. Calculate the magnitude and direction of the magnetic field in the region through which the current passes.

_____T

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6. A wire carries a current of 5.0 A in a direction that makes an angle of 35.0° with the direction of a magnetic field of strength 0.300 T. Find the magnetic force on a 7.00 m length of the wire.

_____N

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7. A wire is formed into a circle having a diameter of 10.7 cm and is placed in a uniform magnetic field of 2.78 mT. The wire carries a current of 5.00 A. Find the maximum torque on the wire.

_____µN · m

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8. A current of 29.0 mA is maintained in a single circular loop with a circumference of 2.40 m. A magnetic field of 0.450 T is directed parallel to the plane of the loop. What is the magnitude of the torque exerted by the magnetic field on the loop?

_____ N · m

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9. A rectangular loop consists of 102 closely wrapped turns and has dimensions 0.400 m by 0.300 m. The loop is hinged along the y-axis, and the plane of the coil makes an angle of 30.0° with the x-axis (see figure below).

What is the magnitude of the torque exerted on the loop by a uniform magnetic field of 0.760 T directed along the x-axis when the current in the windings has a value of 1.20 A in the direction shown?

_____N · m

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10. An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.240 T. If the kinetic energy of the electron is 3.20 X 10^-19 J, find the speed of the electron and the radius of the circular path.

(a) the speed of the electron

_____m/s

(b) the radius of the circular path

_____µm

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11. A proton travels with a speed of 4.90 X 10^6 m/s at an angle of 62° with the direction of a magnetic field of magnitude 0.150 T in the positive x-direction.

(a) What is the magnitude of the magnetic force on the proton?

_____N

(b) What is the proton's acceleration?

_____m/s^2

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12. In each of parts (a), (b), and (c) of the figure below, find the direction of the current in the wire that would produce a magnetic field directed as shown.

part (a)

part (b)

part (c)

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13. Two long, parallel wires separated by 5.00 cm carry currents in opposite directions. The current in one wire is 1.30 A, and the current in the other is 3.40 A.

(a) Find the magnitude of the force per unit length that one wire exerts on the other.

_____N/m

(b) Is the force attractive or repulsive?

__attractive

__repulsive

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14. A long solenoid that has 1,190 turns uniformly distributed over a length of 0.395 m produces a magnetic field of magnitude 1.00 X 10^-4 T at its center. What current is required in the windings for that to occur?

_____mA

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15. A certain superconducting magnet in the form of a solenoid of length 0.40 m can generate a magnetic field of 12.0 T in its core when its coils carry a current of 120 A. The windings, made of a niobium-titanium alloy, must be cooled to 4.2 K. Find the number of turns in the solenoid.

_____turns

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ReplyDeleteThanks to Kyle for notifying me of the broken link!

ReplyDeleteFIXED

This website is awesome, what a fabulous resource for anyone struggling through Phys I and II!

ReplyDelete