Physics Magnetism,Magnetic Effects Of Current Level: High School
Force on a moving charge in a magnetic field
A particle is emitted due north into a uniform magnetic field that is directed vertically up . The particle is immediately / instantaneously deflected west . The particle is a: then explain .a) alpha
b) beta
c) gamma
d) neutron
e) proton
d) either alpha or a proton
g) more information is needed
Physics Magnetism,Magnetic Effects Of Current Level: High School
Torque on a current carrying coil on a magnetic field
Find the maximum torque exerted on a circular coil carrying a current of 4 A , consisting of 200 turns , 10 cm in radius , and rotated in a uniform magnetic field of 0.1 T at an angular velocity of 20 rev/min .
Physics Magnetism,Magnetic Effects Of Current Level: High School
A rectangular loop of wire , 9.0 cm by 5.0 cm carrying current I = 2.0 mA , is next to a very long wire carrying a current I = 8.0 A . The loop and the wire are 2.0 cm apart . The current in the loop travels clockwise and the current in the wire is traveling to the right .a) What is the direction of the magnetic force on each of the four sides of the rectangle due to wire’s magnetic field ?
b) Calculate the net magnetic force on the rectangular loop due to the long wire’s magnetic field .
(Hint : The long wire does not produce a uniform magnetic field)
Physics Magnetism,Magnetic Effects Of Current Level: High School
The power cable for an electric trolley carries a horizontal de current of 330 A toward the east , The earth’s magnetic field has a strength 5.0 x 10^5T and makes an angle of dip of 22 degree at this location . Calculate the magnitude and direction of the magnetic force on a 10-m length of this cable .
Physics Magnetism,Magnetic Effects Of Current Level: High School
Calculate the force on an air which has acquired a net charge of 1550 micro C and moves with a speed of 120 m/s perpendicular to the Earth’s magnetic field of 5.0 x 10^-5 T .
Physics Magnetism,Magnetic Effects Of Current Level: High School
A 5.0-KeV(kinetic energy) proton enters 0.20T field , in a plane perpendicular to the field .What is the radius of its path ?
Physics Magnetism,Magnetic Effects Of Current Level: High School
For a particle of mass m and charge q moving in a circular path in a magnetic field B ,a) Show that its kinetic energy is proportional to r^2 , the square of the radius of curvature of its path .
b) Show that its angular momentum is L = qBr^2 , about the center of the circle
Physics Magnetism,Magnetic Effects Of Current Level: High School
An electron is projected vertically upward with a speed of 1.80 x 10^6 m/s into a uniform magnetic field of 0.250 T that is directed horizontally away from the observer . Describe the electron’s path in this field .
Physics Magnetism,Magnetic Effects Of Current Level: High School
A straight 2.0mm diameter copper wire can just “float” horizontally in air because of the force of the Earth’s magnetic field B , which is horizontal , perpendicular to the wire , and of magnitude 5.0 x 10^-5 T . What current does the wire carry ?
Physics Magnetism,Magnetic Effects Of Current Level: High School
Calculate the magnetic force on a 240-m length of wire stretched between two towers carrying a 150-A current . The Earth’s magnetic field of 5.0 x 10^-5 T makes an angle of 60 degrees with the wire . How much current is flowing in a wire 4.20 m long if the maximum force on it is 0.900 N when placed in a uniform 0.0800-T field ?
Physics Magnetism,Magnetic Effects Of Current Level: High School
Force on current carrying conductor in a magnetic field
An electron is moving at a speed of 1.0 x 10 4th m/s in a circular path of radius of 2.0 cm inside a solenoid . The magnetic field of the solenoid is perpendicular to the plane of the electron’s path. Finda) The strength of the magnetic field inside the solenoid
b) The current in the solenoid if it has 25 turns per centimeter
Physics Magnetism,Magnetic Effects Of Current Level: High School
Force on current carrying conductor in a magnetic field
A 0.200 kg metal rod carrying a current of 10.0A glides on two horizontal rails 0.500m apart . What vertical magnetic field is required to keep the rod moving at a constant speed if the coefficient of kinetic friction between the rod and rails is 0.100
Physics Magnetism,Magnetic Effects Of Current Level: High School
The current in the windings on a toroid is 2.00 A. There are 400 turns , and the mean radius is 0.0640 m . The magnetic field inside the windings is 1.40 T .calculate ,a) The relative permeability .
b) The magnetic susceptibility of the material that fills the toroid .
Physics Magnetism,Magnetic Effects Of Current Level: High School
A long, straight wire carries a current of 8.00 A directed along the y-axis and the –y direction . In addition to the magnetic field due to the current tin the wire , a uniform magnetic field Bo with magnitude 8.00 x 10^-7 T is directed parallel to the x-axis . Determine the resultant magnetic field (magnitude and direction) at the following points .a) x = 0, z = 2.00 m
b) x = 2.00 m , z = 0
c) x = 0, z = -2.00 m
Physics Magnetism,Magnetic Effects Of Current Level: High School
A long straight wire carries a current of 1.50 A . An electron travels with a speed of 5.00 x 104 m.s-1 parallel to the wire , 0.600 m from it , and in the same direction as the current . What are the magnitude and direction of the force that the magnetic field of the current exerts on the moving electron ?