Understanding how to properly measure electrical resistance can help you diagnose problems with electrical systems and ensure their reliability and safety.
First we have to understand the resistance of a wire for solving this problem: The resistance of wire is depends upon the material out of which the wire is made and also depends upon the length and cross-section area of the wire. Suppose L is the len...
A Resistor is an electrical device that resists the flow ofelectrical current. It is a passive device used to control, or impede the flow of, electric current in an electric circuit by providing resistance, thereby developing a drop in voltage across the device. We need some way to control...
What is the impedance of an ac RC parallel circuit if the resistance is 12 ohms and the capacitive reactance equals 5 ohms? In an AC circuit, the capacitive reactance is 487 ohms, the inductive reactance is 592 ohms and the resistance ...
What is the current in the 10 ohm resistor and what is the power delivered by it? You want to use a 5.0 ohms, 15 mA galvanometer coil as a 20 V voltmeter. What resistance should be placed in series with the coil? For the circuit shown in the following figure, the ammeter A and ...
What Is a Cliché? Aclichéis a tired, stale phrase or idiom that, because of overuse, has lost its impact. What was once a fresh way of looking at something has become a weak prop for writing that feels unimaginative and dull. Clichés are what you write when you don’t have the en...
Step 3: Run a resistance or ohms reading test (with a multimeter). Locate the harness connector on the ignition coil pack you've just removed. These connectors usually have three terminals. For this test, you'll need terminals 1 and 2. The best practice to locate the correct terminals for...
A solenoid is an electromagnet formed from a wire that carries current. Electromagnets have magnetic fields created from currents. The wire of a solenoid is often formed into a helical coil, and a piece of metal such as iron is often inserted inside. Whe
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When measuring leakage current, the instrument is sometimes clamped around two wires instead of one. (When measuring leakage current in a ground wire, the instrument is clamped around one wire.) Leakage current is current that flows through the load’s insulation resistance, generally on the ...