3a) An electron is moving due north when it enters a magnetic field directed downwards toward...

3a) An electron is moving due north when it enters a magnetic field directed downwards toward the ground. What is the direction of the magnetic force on the electron?

b) The magnetic field strength 0.5 m away from a long straight wire is 7.2 x 10^-7 T. Calculate the current in the wire.

c) A single-turn wire loop of radius 5 cm rests flat on a table which is perpendicular to a magnetic field of strength 3.4 T. The field strength is turned down and it takes 0.08 seconds to reach 1.2 T. Calculate the magnitude of the emf induced in the loop.

Expert Solution

genius_generous answered 2 years ago

An electron is moving north; what direction should a magnetic field be oriented, so the magnetic...

An electron is moving north; what direction should a magnetic field be oriented, so the magnetic force on the electron just balances the gravitational force? A square loop is in the x-y plane, with its top and bottom parallel with the x-axis, and its sides parallel with the y-axis. It carries a clockwise current when viewed from the positive z-axis. There is a constant magnetic field pointed in the x-axis direction. What are then directions of the magnetic forces on the four...

1. An electron, initially moving in the +x-direction enters a uniform magnetic field in the +y-direction....

1. An electron, initially moving in the +x-direction enters a uniform magnetic field in the +y-direction. What is the direction of the initial magnetic force on the electron? None of the choices is correct. between +x and +y-directions +z-direction between +x and –y-directions –z-direction 2. A small light source radiates light uniformly in all directions at a rate of 10 W. What is the light intensity at a distance of 2 m from the source? 0.4 W/m2 0.8 W/m2 0.2...

Magnetic field of 10T directed vertically upward exerts a force on a particle having a charge of 1C moving toward 37° north of east at a speed of 1m/s.

Magnetic field of 10T directed vertically upward exerts a force on a particle having a charge of 1C moving toward 37° north of east at a speed of 1m/s. The magnitude of the said force must be14N.10N.8N.6N.zero.

A uniform magnetic field is directed into the page. A charged particle, moving in the plane...

A uniform magnetic field is directed into the page. A charged particle, moving in the plane of the page, follows a clockwise spiral of decreasing radius as shown. A reasonable explanation is: a.the charge is negative and speeding up b.none of these c.the charge is negative and slowing down d.the charge is positive and slowing down e.the charge is positive and speeding up

An electron is moving through a magnetic field whose magnitude is 8.70x 10^-4T. The electron experiences...

An electron is moving through a magnetic field whose magnitude is 8.70x 10^-4T. The electron experiences only a magnetic force and has an acceleration of magnitude 3.50 x 10^14m/s^2. At a certain instant, it has a speed of 6.80 X 10^6 m/s^2. Determine the angle (less than 90 degrees) between the electrons velocity and the magnetic field.

Part A An electron is moving east in a uniform electric field of 1.52 N/C directed...

Part A An electron is moving east in a uniform electric field of 1.52 N/C directed to the west. At point A, the velocity of the electron is 4.54×105 m/s pointed toward the east. What is the speed of the electron when it reaches point B, which is a distance of 0.360 m east of point A? Part B A proton is moving in the uniform electric field of part A. At point A, the velocity of the proton is...

A proton and an electron are moving due east in a constant electric field that also...

A proton and an electron are moving due east in a constant electric field that also points due east. The electric field has a magnitude of 3.0

An electron in a TV camera tube is moving at 7.20×106 m/s in a magnetic field...

An electron in a TV camera tube is moving at 7.20×106 m/s in a magnetic field of strength 59 mT. Without knowing the direction of the field, what can you say about the greatest and least magnitude of the force acting on the electron due to the field? Maximum force? Minimum force? At one point the acceleration of the electron is 6.327×1016 m/s2. What is the angle between the electron velocity and the magnetic field? (deg)

An electron in a TV camera tube is moving at 6.20×106 m/s in a magnetic field...

An electron in a TV camera tube is moving at 6.20×106 m/s in a magnetic field of strength 75 mT. Without knowing the direction of the field, what can you say about the greatest and least magnitude of the force acting on the electron due to the field? Maximum force? Minimum force? At one point the acceleration of the electron is 7.767×1016 m/s2. What is the angle between the electron velocity and the magnetic field? (deg)

True/False 1) A wire carrying current due east in a magnetic field is deflected due north....

True/False 1) A wire carrying current due east in a magnetic field is deflected due north. The magnetic field must have a component that points into the ground 2) The self-inductance of a solenoid depends on the geometry of the solenoid and is independent of the current flowing through it 3) A horizontal bar that is oriented east to west is pulled vertically upward through a magnetic field that points due north. The east end of the bar is at...

Question