Problem 2. Magnets and electromagnetic induction. (a) One electron and one proton are launched into a uniform magnetic field. Initially, they move to the right at the same velocity, and once they enter the region of magnetic field they follow these paths (not perfectly to scale, but enough to get the idea): Which path is which particle? (Remember, electrons and protons have equal and opposite charge, but protons have about 2000x the mass of an electron.) Which direction is the magnetic field pointing? Explain both answers. (b) A loop of wire moving over a stationary bar magnet will have a current induced, due to the magnetic force acting on the mobile charges in the wire. From a different frame of reference, a bar magnet moving past a stationary loop of wire will have a current induced due to a (Faraday) electric force acting on the mobile charges in the wire. Answer these questions about the Faraday-induced electric field of a moving bar magnet, and explain your reasoning: (1) What might the electric field lines look like in (or near) the loop of wire? (Remember, there are no net charges around for field lines to start or stop! And, the field has to induce a net current.) (2) Does the Faraday-induced electric field exist outside of the wire, or just inside the wire? (3) Does the Faraday-induced electric field exist if the magnet is at rest, and how could you tell experimentally if you are right?
Refraction of Light
Refraction is a change in the direction of light rays when they travel from one medium to another. It is the bending of light when it goes through different media.
Angle of Refraction
Light is considered by many scientists to have dual nature, both particle nature and wave nature. First, Particle nature is one in which we consider a stream of packets of energy called photons. Second, Wave nature is considering light as electromagnetic radiation whereas part of it is perceived by humans. Visible spectrum defined by humans lies in a range of 400 to 700 nm wavelengths.
Index of Refraction of Diamond
Diamond, the world’s hardest naturally occurring material and mineral known, is a solid form of the element carbon. The atoms are arranged in a crystal structure called diamond cubic. They exist in a huge variety of colours. Also, they are one of the best conductors of heat and have a very high melting point.
Can you answer part b of problem 2 in the image?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images