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A transistor works by changing its resistance between the amount of power going in and the power going out, depending on how much current flows through the base to the emitter. Transistors can amplify electronic signals ... More »

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A transistor amplifies and switches electrical power and electronic signals. It is a semiconductor made of solid, non-moving parts that control the flow of electricity in circuits. More »

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Transistors function as current amplifiers or binary switches. With amplification, a small current controls a gate for a greater current. As switches, a 5-volt threshold (gate open) equals binary digit one, less than 5 v... More »

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A wireless electrical outlet works by using the magnetic fields that occur naturally in a current moving through the wires in a outlet to create a current and voltage in the wires of the device receiving power in a proce... More »

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An amperage calculator works by entering at least two variables needed for the calculation, which can include volts (V), resistance (R) and power (P). In physics, there are many different formulas where I, the current in... More »

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Three-phase electric power utilizes three conductors that each carry an alternating current, meaning the current first flows in one direction in a circuit and then reverses to flow in the other direction, of the identica... More »

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An electric circuit works by providing a closed loop to allow current to flow through a system. Electrons must be able to flow throughout the circuit, completing a path from one pole of the power source to the other. Alo... More »

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