Consider the resistor that you want to calculate the voltage across. Suppose, as an example, that you are considering a 4 Ohm resistor. Step 2 Measure the current passing through the wire in the circuit immediately after the resistor. Use a multimeter or ammeter to measure the current. Wire ...
Determine the Vcc in a feedback-biased circuit. This can be done using the formula: Vcc = Vrc + Vrb + Vbe + (Ic + Ib)Rc + IbRb + Vbe, where "Vrc" is the voltage across the collector resistor; "Vrb" is the voltage across the base resistor (connected across the base) and the ...
This is the device connected to a voltage source. It could be a motor, bulb, heater, LED, or an electronic resistor. What Are Watts? Power is the rate at which energy is consumed by a load and is measured in watts. A kilowatt is 1000 watts, also abbreviated to kW. Low powers are...
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 multimeters are reasonably accurate, you have to...
To wire the circuit you need to connect an LED to 9V battery through a 470 Ohm resistor. To measure the voltage drop across the resistor: You just have to place the red probe in one lead of the resistor and the black probe on the other lead of the resistor. ...
One end of the circuit, the hot wire, leads to the power plant. The other end, called the neutral wire, leads to the ground. Because the hot wire connects to a high energy source, and the neutral wire connects to an electrically neutral source (the earth), there is a voltage across ...
Here, the pot resistance along with the 1 K resistor forms a resistive divider network at the base of the transistor. As the pot slider is moved, the voltage at the base of the transistor is changed, and this correspondingly alters the emitter voltage across the lamp, and the lamp intensit...
and it is a basic building block in circuit analysis. By measuring the voltage across the circuit we can see how much voltage each component requires. Let's measure the whole circuit first. Measuring from where the voltage is going in to the resistor and then where ground is on the LED,...
is 1 amp, the voltage across it will be 0.7v because it is not being "overloaded." But 1 amp through a 1amp diode is going to stress it enormously and the voltage across the junction can go as high as 1.1v. So, nothing is predictable and you have to build the circuit to find ...
So 200-300mA would be the ballpark area (although i'm curious how the choices would change across the range if you need, say 500mA, or just 100mA). Logged JustMeHere Frequent Contributor Posts: 813 Country: Re: How to make a simple, noise free 5v->3.3v DC linear voltage ...