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Resistors
Ammeters are electrical instruments that measure the current at a point in a circuit. They are usually inserted directly into the circuit line (series), but they can be parallel to the circuit, as a ...Read More
If you have access to a resistor, you can easily find its resistance with a voltmeter to find the voltage drop across it, with an ammeter to find the current through it, and with the definition of resistance: ...Read More
A transformer is an electronic device that converts electrical energy from an energized primary alternating circuit to a secondary circuit that otherwise would not have a current. The primary alternating ...Read More
In physics, resistance refers to the tendency of a substance to impede the flow of electrical current through it. Resistors are devices used in electric circuits that you can calibrate to produce specific ...Read More
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Technically, electrical conductivity is the current density per electric field strength. This definition makes intuitive sense since the more current that flows through the substance in response to an electric ...Read More
In electronics, an oscillator refers to an alternating circuit in which the current has been tuned to have a certain frequency. More broadly, an oscillator is anything that oscillates, from pendulum clocks to ...Read More
A common problem in elementary physics classes is to solve for the resistance through different elements of a parallel circuit. A simple parallel circuit can be described as follows: a battery sits in a ...Read More
Learning electronics can be difficult since it involves visualizing something that's invisible. Billions of microscopic subatomic particles called electrons are what make electronic devices work. The key to ...Read More
The invention of the transistor moved electronic design from employing vacuum tubes to using semiconductor technology. The word transistor (transfer resistor) is a combination of "tran" from "transfer" and ...Read More
