Direct Current DC – RENAISSANCE PHYSICS

INTRODUCTION TO ELECTRONICS: Resistors in Series Circuits

The voltage ( V ) or “ potential difference “ of a DC power source is the drop in energy ( J ) that a coulomb ( C ) of charge will experience by traveling through a resistance ( R ) found within a circuit. The current in question flows along a closed, non-diverging route:Continue reading “INTRODUCTION TO ELECTRONICS: Resistors in Series Circuits”

INTRODUCTION TO ELECTRONICS: Series Circuits

A series circuit is one in which electric current ( I ) travels along a closed path that does not split apart: *** Note: Conventional current consists of positive charges that flow from the positively charged anode to the negatively charged cathode. In reality, negatively charged electrons flow in the opposite direction. *** The diagram,Continue reading “INTRODUCTION TO ELECTRONICS: Series Circuits”

INTRODUCTION TO ELECTRONICS: Electron Volts vs. Kilowatt Hours ( Part 2 )

A previous mathematical derivation was used to determine that an electron volt ( eV ) is a quantity of energy carried by an electron that accelerates through an electric field. We will now see that the kilowatt-hour ( kWh ) is also a unit of energy; it is a quantum of energy carried by aContinue reading “INTRODUCTION TO ELECTRONICS: Electron Volts vs. Kilowatt Hours ( Part 2 )“

INTRODUCTION TO ELECTRONICS: Direct Current ( DC ) Voltage, Current, and Resistance

An introductory discussion of electronics would be remiss without a conceptual analysis of DC voltage ( Vdc ), current ( I ), and resistance ( R ). Most students readily adapt to teaching strategies that relate new topics to familiar themes and everyday life experiences. Visual aids are of preeminent importance to new and seasonedContinue reading “INTRODUCTION TO ELECTRONICS: Direct Current ( DC ) Voltage, Current, and Resistance”

ELECTRICITY: Series and Parallel Electrical Circuits

Note: The problem is much easier when one is familiar with what a series vs. parallel circuit looks like. Fortunately, plenty of examples can be found on the internet. Q: Two resistors are submitted to a 12 V potential. When linked together, the current is of 1.33 A. When in parallel, the current is 5.4Continue reading “ELECTRICITY: Series and Parallel Electrical Circuits”

ELECTRICITY: Direct Current and Parallel Resistors

INTRODUCTION TO DIRECT CURRENT ( DC ) ELECTRONICS : Note: Assuming each resistor ( R ) = 64 Ohms, what is the equivalent resistance of the circuit from points A to B ? Symmetry regarding the flow of electrons is the key to calculating the total resistance ( R ) of this circuit. Let’s suppose theContinue reading “ELECTRICITY: Direct Current and Parallel Resistors”