What is the Dielectric constant / Relative Permittivity? (Capacitor)
The dielectric constant is the ratio of the permittivity of a substance to the permittivity of free space. It is a dimensionless physical constant
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What is the Dielectric constant / Relative Permittivity? (Capacitor)
The dielectric constant is the ratio of the permittivity of a substance to the permittivity of free space. It is a dimensionless physical constant
Ohm’s Law explanation
Ohm’s law states that the voltage across a resistor is directly proportional to the current flowing through the resistance and directly proportional to the resistance of the circuit.
How does a Zener diode voltage regulator work?
Design method. Determination of the voltage, power of the zener diode and of the limiting resistor Rs
Voltage regulators
Voltage regulators (linear, switching) provide a stable and fixed voltage output to give energy to electronics circuits from an unregulated power source
The half-wave rectifier rectification process.
Polarization of semiconductor diode in the forward and in the reverse direction. Input and output waveforms
Capacitors in series – Capacitors in parallel.
How to obtain the equivalent capacitance of series capacitors and parallel capacitors? Formulas and examples
Series/Parallel Resistor Reduction.
Resistors reduction can be done making some simplifications using resistors in series and resistors in parallel formulas.
Inverting Summing Amplifier using Op Amp
The inverting summing amplifier using op amp outputs a voltage equal to the sum of the voltages it has in its inputs. The following explanation is based on an adder of three inputs, but applies to an adder of any number of inputs
Electrolytic Capacitor
Electrolytic capacitors have been developed to achieve large capacities in small physical dimensions. To achieve this large capacity, a special dielectric is used.
NAND gate – Truth table.
NAND gate, also called universal gate, is a gate that produces a logic “0” output only when all logic inputs are “1”. Truth table.
Mesh Current Method in a Resistor Network
The Mesh current method is very useful to know all the current in a network of only resistors. This method, a little more extended, is also applied to circuits where there are resistances and reactance.
What is a Millman’s Theorem?
Millman’s theorem is used to directly obtain the voltage between the ends of a parallel branch circuit. Equivalent Millman circuit Formulas, example.