How is it possible to electrically measure the torque output by a…
The Q factor of a series inductive circuit is given by the following…
A switch can be constructed with any mechanism bringing two conductors…
We’ve already seen one example of a monostable multivibrator in…
Bipolar junction transistors (Also known as BJTs) can be used as an…
What do you think this logic buffer gate will do, with the output…
Suppose you were to take a 3 kW electric heater rated for 240 VAC and…
PARTS AND MATERIALS 4001 quad NOR gate (Radio Shack catalog #…
A calculator for computing several parameters needed in the design of a flyback switch mode regulator
Another variation on a theme of bistable multivibrators is the J-K…
Calculate the voltage output by the secondary winding of a transformer…
PARTS AND MATERIALS Low-voltage AC power supply (6-volt output) Two…
Just as devices have been made to measure certain physical quantities…
Most AC motors are induction motors. Induction motors are favored due…
“All men are liable to error;” —John Locke Whereas…
What do you think this logic buffer gate will do, with the output…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
A tool designed to convert between units of torque
A bistable multivibrator has two stable states, as indicated by the…
Electromechanical watt-hour meters use an aluminum disk that is spun…
Any kind of switch contact can be designed so that the contacts…
Ladder diagrams are specialized schematics commonly used to document…
All About Contactors When a relay is used to switch a large amount of…
What are Time-Delay Relays? Some relays are constructed with a kind of…
Synchronous motors load the power line with a leading power factor.…
As we saw with DC measurement circuits, the circuit configuration…
Generally speaking, how many “time constants” worth of time does…
PARTS AND MATERIALS Paper tube, from a toilet-paper roll Bar of iron…
Perhaps the most challenging aspect of interpreting ladder diagrams,…
A tool designed to convert RF power from watts to decibels and vice versa
Thyristors are a class of semiconductor components exhibiting…
If we were to connect two inverter gates together so that the output…
What voltage will you choose to use for each of the station batteries?
Note the “50 ohm” rating printed on the jacket of the cable. What…
After the introduction of the DC electrical distribution system by…
Don’t just sit there! Build something!! Learning to mathematically…
Solving for x in a given polynomial equation “ax2 + bx + c…
Calculate the voltage output by the secondary winding of a transformer…
Don’t just sit there! Build something!! Learning to mathematically…
Counting practice: count from zero to thirty-one in binary, octal, and…
A very common misconception students have about potentiometers is the…
PARTS AND MATERIALS Four 6-volt batteries 12-volt light bulb, 25 or 50…
Three-Phase Alternator Let’s take the three-phase alternator…
∫f(x) dx Calculus alert! Electronic power conversion circuits known…
Inductive Reactance Capacitive Reactance …
The Functionality of Diode Polarity Being able to determine the…
