Visual and Mathematical Representations of the Electric
... We cannot see electric fields created by charged objects; we only know about the field’s presence at different locations by placing other charged objects at these locations. The presence of the field is induced by how the motion of the charged object is changed. We call the objects that probe the fi ...
... We cannot see electric fields created by charged objects; we only know about the field’s presence at different locations by placing other charged objects at these locations. The presence of the field is induced by how the motion of the charged object is changed. We call the objects that probe the fi ...
1. Assume a plane wave in vacuum for which... and the amplitude of the electric field is E
... B1. Is the direction of S in the direction of k for a plane wave in vacuum? B2. Is the direction of S always in the direction of k for a plane wave in a metal? C. The answer to B2 has implications for the energy flow per unit second of an EM-wave in a metal, the momentum density of and EM-wave in a ...
... B1. Is the direction of S in the direction of k for a plane wave in vacuum? B2. Is the direction of S always in the direction of k for a plane wave in a metal? C. The answer to B2 has implications for the energy flow per unit second of an EM-wave in a metal, the momentum density of and EM-wave in a ...
Solutions7
... proton is shown to the right. We know that, because the proton enters the field perpendicularly to the field, its trajectory while in the field will be circular. We can use symmetry considerations to determine . The application of Newton’s 2nd law to the proton while it is in the magnetic field and ...
... proton is shown to the right. We know that, because the proton enters the field perpendicularly to the field, its trajectory while in the field will be circular. We can use symmetry considerations to determine . The application of Newton’s 2nd law to the proton while it is in the magnetic field and ...
1 - Vernon ISD
... are the same length, the speed is constant. If the arrows are shorter than the previous arrow, the speed is decreasing. The arrows in Ming’s diagram are longer than the previous arrows, so the car she saw is accelerating. 5. When a car accelerates, the speed is NOT constant (so the answer is not gra ...
... are the same length, the speed is constant. If the arrows are shorter than the previous arrow, the speed is decreasing. The arrows in Ming’s diagram are longer than the previous arrows, so the car she saw is accelerating. 5. When a car accelerates, the speed is NOT constant (so the answer is not gra ...
Magnetic Field and Work
... dipole moments) attract each other. How come? There is no net force, only torque, on magnetic dipole moment in uniform B When B is non-uniform, then there is net force. Can be shown that the direction of this force is such that magnetic dipole moment is attracted to the region of high B. ...
... dipole moments) attract each other. How come? There is no net force, only torque, on magnetic dipole moment in uniform B When B is non-uniform, then there is net force. Can be shown that the direction of this force is such that magnetic dipole moment is attracted to the region of high B. ...
Document
... 54. Two skaters are initially at rest next to each other on frictionless ice. Skater A pushes on skater B. If skater A has greater mass than skater B, which of the following correctly relates the magnitudes of their momentums p and their kinetic energies K after the push? (A) pA = pB and KA < KB (B) ...
... 54. Two skaters are initially at rest next to each other on frictionless ice. Skater A pushes on skater B. If skater A has greater mass than skater B, which of the following correctly relates the magnitudes of their momentums p and their kinetic energies K after the push? (A) pA = pB and KA < KB (B) ...
Electromagnetic Waves
... Note: Charges and Fields Stationary charges produce only electric fields Charges in uniform motion (constant velocity) produce electric and magnetic fields Charges that are accelerated produce electric and magnetic fields and electromagnetic waves These fields are in phase – At any point, b ...
... Note: Charges and Fields Stationary charges produce only electric fields Charges in uniform motion (constant velocity) produce electric and magnetic fields Charges that are accelerated produce electric and magnetic fields and electromagnetic waves These fields are in phase – At any point, b ...