Magnitude of force

(Refer to attached picture file) An electron moving 6.00x105 m/s in the x-z plane at an angle of 60o as shown is at the origin of a Cartesian coordinate system. The magnetic field B is 2.00 T in the positive x direction. Find the magnitude of the force on the electron and state its direction in reference to the x, y, and z ax ...continues

Electromagnetic Theory: Magnitude and direction of force

(Refer to attached picture file) A uniform B field of magnitude 0.0769 T is directed as shown in the diagram. A straight wire segment 15.0 cm long lies in the plane of the paper and carries a current of 28.7 A from the upper right to the lower left. a) On the diagram sketch the direction of the force on the wire. b) Find the ...continues

Current, magnitude

A solenoid 12 cm long has a total of 10,000 turns of wire uniformly distributed along its length. It carries a current of 0.833 A and is filled with a ferromagnetic material with a permeability 700 times the permeability of free space What is the magnitude of B at the center?

Soeed of Light.

(See attached file for full problem description) --- Galileo attempted to measure the speed of light by measuring the time elapsed between his opening a lantern and his seeing the return light from his assistant's lantern... ---

Potential energy and waves

(See attached file for full problem description) --- A pulsed laser produces brief bursts of light... ---

Capacitor with Variable Capacity: Gang Capacitor

Five 1-in^2 plates are arranged in attached file (Plates.jpg). The plate spacings are 0.01 in. The arrangement is to be used for a displacement transducer by observing the change in capacitance with the distance x. Calculate the sensitivity of the device in pico-farads per inch. Assume that the plates are separated by air.

Magnetic Field due to a Magnetic Dipole

The Earth's magnetic field is essentially that of a magnetic dipole. If the field near the North Pole is about 1.0x10^-4 T, what will be its approximate value 18,000km above the surface at the North Pole?

Force between two parallel wires.

A rectangular loop of wire is placed next to a straight wire as shown below. There is a current of 2.5A in both wires. What is the magnitude and direction of the net force on the loop? 2.5A ---> -------------------------- : 3cm: 2.5A ---> : ----------- ...continues

Ampere's Law

Consider a straight section of wire of length L which carries a current I, as shown below. Show that the magnetic field at a point P a distance R from the wire along its perpendicular bisector is B = (muI/2piR) * L/(L^2 + 4R^2)^1/2 ^ : : : : L/2 : I : : : ...continues

Ampere's law: Magnetic field due to a coaxial cable.

A coaxial cable consists of a solid inner conductor of radius R1, surrounded by a concentric cylindrical tube of inner radius R2 and outer radius R3. The conductors carry equal and opposite currents I distributed uniformly across their cross-sections. Determine the magnetic field at a distance R from the axis for a) R < R1 ...continues