Engineering Physics 10 min read
Power: Putting Charges to Work
Electric circuits are designed to serve a useful function. The mere movement of charge from terminal toterminal is of little use if…
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Requirements of a Circuit
Suppose that you were given a small light bulb, an electrochemical cell and a bare copper wire and were asked…
Engineering Physics 5 min read
Electric Current
What is an Electric Circuit? In Lesson 1, the concept of electric potential difference was discussed. Electric potential is the amount of…
Engineering Physics 14 min read
Electric Potential Difference
In the previous section of Lesson 1, the concept of electric potential was introduced. Electric potential is a location-dependent quantity that…
Engineering Physics 10 min read
Electric Potential
In the previous section of Lesson 1, it was reasoned that the movement of a positive test charge within an electric…
Engineering Physics 7 min read
Current Electricity
Electric Potential Difference Electric Field and the Movement of Charge Perhaps one of the most useful yet taken-for-granted accomplishments of…
Engineering Physics 10 min read
Lightning
most known and powerful display of electrostatics in nature is a lightning storm. Lightning storms are inescapable from humankind’s attention. They…
Engineering Physics 13 min read
Electric Fields and Conductors
We have previously shown in Lesson 4 that any charged object – positive or negative, conductor or insulator – creates…
Engineering Physics 11 min read
Electric Field Lines
In the previous section of Lesson 4, the vector nature of the electric field strength was discussed. The magnitude or strength of an…
Engineering Physics 16 min read
Electric Field Intensity
In the previous section of Lesson 4, the concept of an electric field was introduced. It was stated that the electric…
Engineering Physics 8 min read
Electric Fields
Action at a Distance The underlying and primary question being addressed in this unit of The Physics Classroom is: How…
Engineering Physics 14 min read
Newton’s Laws and the Electrical Force
The attractive or repulsive interaction between any two charged objects is an electric force. Like any force, its effect upon objects…