Young electronic hobbyists and enthusiasts are often confused and wonder how to calculate LED and its resistor in a circuit, since they find it difficult to optimize voltage and current through the group of LEDs, required to maintain an optimum brightness. Contentshide 1Why we need to Calculate ...
Until the Cut-off Frequency point is reached, all of the input signals pass directly to the output, which results in a unity gain. This happens when the reactance of the capacitor is large at low frequencies and prevents any current flow through the capacitor. The response of the circuit de...
When we discuss electrical and electronic circuits, we use the old convention, calledCONVENTIONAL CURRENT FLOW(from positive to negative). To get away from any idea of thinking about "electrons" we say "electricity flows from positive to negative." We say this so we can follow all the electri...
This guide for consumers and students explains all about volts, amps and watts and how they apply to home appliances and circuits. The equations are really quite simple, and you'll find some examples on how to apply them to home appliances.©...
It is the resistance that the current flows from the grounding device into the earth and then flows through the earth to another grounding body or spreads to a distant place. It includes the grounding wire and the grounding body itself. The contact resistance between the resistor, the grounding...
the ground clip and your circuit's ground point. Then connect your probe tip to the signal under test. Probe tips exist in a variety of form factors -- the spring-loaded clip, fine point, hooks, etc. -- try to find one that doesn't require you to hold it in place all the time....
If you look inside an amplifier for an answer, you'll only find a complex mass of wires and circuitry components. The amplifier needs this elaborate setup to make sure each part of the audio signal is represented correctly and accurately. Hi-fidelity output requires very precise control. ...
Find the battery emf. A battery is connected across a series combination of two identical resistors. If the potential difference across the terminals is V and the current in the battery is i: a. the potential difference across each resistor is V and the current each resistor When two or ...
The base resistor value can be calculated using the formula: Rb= (Base Supply Vb- Base-Emitter Forward Voltage) x hFE / Load Current Also remember that, the negative or the ground line of the external voltage must be connected with the transistor ground line or the emitter, otherwise the ...
Repeat Step 2 for the forward and reverse resistances of the collector-base leads. Wire a CE circuit. Use a base voltage of 3 V that is connected to a 100k resistor. Place the 1k resistor at the collector and connect the other end of it to the 9-volt battery. The emitter should go...