INTRODUCTION TO ELECTRONICS: The Magnetomotive Force

The relationship between cause, effect, and resistance ( R ) to change are beautifully summed up by the Ohm’s law equation: ( V / R ) = I The greater the ability a system has to resist change, the less so that change will be observed. As far as Ohm’s law is concerned, change is

INTRODUCTION TO ELECTRONICS: Electron Volts vs. Kilowatt Hours ( Part 1 )

Although related, voltage ( V ) and power ( P ) are fundamentally different entities. The voltage within an electrical system is a measure of how many joules ( J ) of energy each coulomb ( C ) of charge ( q ) carries with it. Power is a measure of the rate at which

ELECTROSTATICS: Electric Field at the Center of an Equilateral Triangle

Q: Three point charges located at the corners of an imaginary equilateral triangle carry charges of +8 µC, +3 µC, and -5 µC, respectively. A distance of 0.5 m separates the charges from one another. What net electric field ( E-field ) will a positive test charge experience when placed at the triangle’s center? A:

ELECTROSTATICS: Unit Vector Analysis of a Two-Charge System ( Part 2 )

Q: Two subatomic particles have a charge of 1.0 x 10-6 C, and they are located on the x-axis at coordinates ( -1.0 m, 0.0 m ) and ( 1.0 m, 0.0 m ). Please calculate the following: The net electric field when a positive test charge ( P ) is situated at coordinates (

ELECTROSTATICS: Unit Vector Analysis of a Two-Charge System ( Part 1 )

Q: Two subatomic particles have a charge ( q1 = q2 = 10-6 C ), and they are located on the x-axis at coordinates ( -1m, 0m ) and ( 1m, 0m ). Please calculate the following: The electric field due to the charges when a positive test charge ( P ) has x/y-coordinates of

ELECTROSTATICS: An Equilateral Triangle’s Center of Mass ( Part 2 )

In a prior example, a visually engaging technique was used to locate the center of mass within an equilateral triangle: A more mathematically detailed approach will now be used to determine the center of mass location. The diagram above must be expanded in such a manner that trigonometry can be applied to our efforts: The

ELECTROSTATICS: An Equilateral Triangle’s Center of Mass ( Part 1 )

The center of mass of a system is the location where the average mass of a system can be assumed to exist. If two equally massive children sit at opposite ends of a seesaw, their average mass will be located at the midpoint between them. When dealing with other systems of masses, determining the center

ELECTROSTATICS: A Charged Particle Suspended in Space

Q: A particle with a positive charge ( q1 = +45 nC ) maintains a fixed position beneath a second particle ( q2  ) with an unknown charge. The second particle ( q2 ) has a mass = 7.5 μg, and it is floating 25 cm above charge q1. The net force on q2 is