chapter 22 hw questions

How strong is the magnetic field inside a solenoid with 10000 turns per meter that carries 18.4 A?

0.231 T

Suppose an oxygen-16 ion with a charge and mass of 4.80 x 10-19 C and 2.66 x 10-26 kg. respectively. travels at 5.00 x 106 m/s perpendicular to a magnetic field. It moves in a circular arc with a radius of 0.32-m. Determine the magnitude of the magnetic field

0.866t

Consider that a proton moves at 7.50 x 107 m/s. perpendicular to the magnetic field. on a circular path of radius 0.75 m. Determine the magnetic field strength experienced by the proton.

1.04T

What is the speed of a supersonic aircraft with a 17.0-m wingspan. if it experiences a 1.60-V Hall voltage between its wing tips when in level flight over the north magnetic pole. where the Earth's field strength is 8.00 x 10-5 T?

1.18x10^3

A charge of -6.6 µC is moving in a magnetic field with a of speed of 8.50 × 106 m/s. This charge experiences a force of magnitude 5.80 × 10-3 N due to the magnetic field. The angle between the magnetic field and the velocity of the charge is 50°. Determine the magnitude of the magnetic field.

1.35x10^-4 T

A positive charge is moving at 4 × 103 m/s in a 1.25-T magnetic field. The velocity of the charge makes an angle of 13.6° with the magnetic field. Determine the magnitude of the magnetic force experienced by this charge

1.88x10^-16 N

An electron moving at 3.9 × 103 m/s in a 1.25-T magnetic field experiences a magnetic force of 1.4 × 10-16 N. What angle does the velocity of the electron make with the magnetic field?

10.3 degrees

Find the current through a loop needed to create a maximum torque of 9.00 N.m. The loop has 50 square turns that are 15.0 cm on a side and is in a uniform 0.8-T magnetic field

10a

The force per meter between the two wires of a jumper cable being used to start a stalled car is 0.225 N/m. What is the current in the wires. given they are separated by 2.00 cm?

150A

A DC power line for a light-rail system carries 1000 A at an angle of 30.0 degrees; to the Earth's 5.00x 10^-5 - T field. What is the force on a 84-m section of this line?

2.10 N

A wire carrying a 25-A current passes between the poles of a strong magnet that is perpendicular to its field and experiences a 2.16-N force on the 4.00 cm of wire in the field. What is the average field strength?

2.16 T

A 7T MRI produces images with higher resolution than what is produced by a 3T MRI. If the length of the 7T MRI's solenoid is 270 cm and it carries a current of 625 A. how many loops does it contain?

2.4x10^4

What is the maximum force on an aluminum rod with a 0.29 μC charge that you pass between the poles of a 1.50-T permanent magnet at a speed of 5.00 m/s?

21.8x10^-7

Determine the maximum torque on a 150-turn square loop of wire 15.0 cm on a side that carries a 49-A current in a 1.50-T field?

248

What is the angle between a wire carrying an 8.3-A current and the 1.20-T field it is in if 50.0 cm of the wire experiences a magnetic force of 2.40 N?

28.8 degrees

A cosmic ray proton moving toward the Earth at 5×107 m/s experiences a magnetic force of 1.7×10-16 N. What is the strength of the magnetic field if there is a 45o angle between it and the proton's velocity?

3.01x10^-5 T

What Hall voltage is produced by a 0.200-T field applied across a 2.60-cm-diameter aorta when blood velocity is 60.0 cm/s? (Enter the answer in mV and answer must be in three significant figures)

3.12 V

Determine the field at the center of a circular loop 20.0 cm in diameter carrying 5.00 A.

3.14x10^-5

A 2.50-m segment of wire supplying current to the motor of a submerged submarine carries 1000 A and feels a 3-N repulsive force from a parallel wire 5.00 cm away. What is the magnitude of the current in the other wire?

300A

Determine the maximum torque on a 148-turn square loop of wire 18.0 cm on a side that carries a 50.0-A current in a 1.60-T field?

384

A nonmechanical water meter could utilize the Hall effect by applying a magnetic field across a metal pipe and measuring the Hall voltage produced. What is the average fluid velocity in a 3.00-cm-diameter pipe. if a 0.500-T field across it creates a 60.0-mV Hall voltage? (enter the answer in m/s and should be in three significant figures)

4.00 m/s

A velocity selector in a mass spectrometer uses a 0.100-T magnetic field. To select a speed of 4.06 x 106 m/s. determine the voltage between the plates if they are separated by 1.00 cm?

4.06kV

Inside a motor. 28.6 A passes through a 250-turn circular loop that is 10.0 cm in radius. What is the magnetic field strength created at its center?

4.49x10^-2 t

A 2.50-m segment of wire supplying current to the motor of a submerged submarine carries 1000 A and feels a 4.3-N repulsive force from a parallel wire 5.00 cm away. What is the magnitude of the current in the other wire?

430A

Suppose a cosmic ray electron moves on a circular path of radius 3.86 m under the influence of a perpendicular magnetic field of 1.00 x 10-5 T. Determine the speed of the electron

6.78x10^6

What is the torque on a 150-turn square loop of wire 18.0 cm on a side that carries a 50.0-A current and makes an angle of 11.1° with 1.60-T field?

61.5 n*m

A positive charge is moving at 4 × 103 m/s in a 1.33-T magnetic field experiences a magnetic force of 1.4 × 10-16 N. What angle does the velocity of this charge make with the magnetic field?

9.47 degrees

Magnetic field lines are continuous forming closed loops without beginning or end.

True

Magnetic field lines can never cross meaning that the field is unique at any point in space

True

Magnetic field strength is proportional to the line density

True

The creation of a voltage across a current-carrying conductor by a magnetic field is known as the Hall effect

True