Two resistances are said to be in parallel if the one terminal of a resistor is connected to the one terminal of the other resistor, and a similar connection is made with their other terminals. In a parallel connection, the potential difference across each resistor is the same. The cu...
Current and Voltage Relation: The current passes through a resistor in a circuit connected across a battery of the potential V is equal to the ratio of the supplied voltage and resistance. As we increase the potential of the battery, the current in the resistor d...
Volt-ampere method (also known as volt-measurement method, ampere-measurement method) is a common method of measuring resistance, by using partial circuit Ohm's law: R=U/I to measure the resistance value. Use the ammeter to measure the current through the unknown resistor at this voltage, an...
This paper is meant to be a comprehensive how to guide to help measure voltage, measure current, and measure power with computer based instrumentation.
How can we measure current? Since current always creates a magnetic field, there areHall Effectand other sensors that allow us to measure this field and thereby measure the current. It is also possible to connect a shunt resistor within the circuit itself and directly measure the current, as ...
The tradeoff, however, is that the smaller contacts on the reed relay make it much more susceptible to damage from arcing when closing a circuit. When an arc jumps across the contacts, it can melt a small section of the contact surface. If the contacts are still closed when the molten ...
Linear oscillators: A harmonic oscillator produces a sinusoidal output. It relies on the principle of resonance, where an LC (inductor-capacitor) or RC (resistor-capacitor) circuit is used to determine the frequency of oscillation. The most common types include the Colpitts, Hartley, and RC Phase...
To find out, we need to be able to calculate the amount of power that the resistor will dissipate. If a current I flows through through a given element in your circuit, losing voltage V in the process, then the power dissipated by that circuit element is the product of that current and...
Photo: Measuring resistance with a multimeter. Using a multimeter like this one, you can automatically find the resistance of an electronic component; the meter feeds a known current through the component, measures the voltage across it, and uses Ohm's law to calculate the resistance. Although ...
This guide may appear duplicative/unnecessary because there are countless articles online that tell you how to secure Linux, but the information is spread across different articles, that cover different things, and in different ways. Who has time to scour through hundreds of articles?