Voltage can be described as the difference in the electrical potential between the two points in the circuit. You can calculate voltage if the currant and the resistance in the circuit are known. If either the current or the resistance results in an increase in the circuit, the voltage will ...
refrigerators, television sets) are placed, each drawing current to keep itself going. But what exactly happens to the voltage and current within a given electrical circuit set-up from a physics standpoint when each resistor is encountered and the voltage "drops"?
how to calculate voltage as a function of resistance without knowing the resistance and current ask question asked 1 year, 2 months ago modified 1 year, 2 months ago viewed 170 times -1 referring to this image below. is there any way i can calculate vr(r) with...
If I have a single 270 ohm resistor connected in a circuit to a 3.3V 50mA power supply, how can I measure the voltage and current for the resistor? I'm familiar with Ohm's law V=IR, where V is the voltage differential, but what is the differential for a resistor? I'm...
Learn how to calculate the resistance within a conductor, and see examples that walk through sample problems step-by-step for you to improve your physics knowledge and skills.
practically its found that due to maximum current restricted @ 35mA, the voltage drops drastically when a load is connected here. However since for an LED even this output may be potentially harmful, an addition of a resistor becomes imperative. The resistance value may be...
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. ...
Part Number: TIPD209 In the user guide it says to calculate the compensation resistor (R2) using the following formula: R2 = ((Vexcite – Vcm)/Vsb)* α This would
Maybe your circuit is running off of 5V, yet you want only 3V to feed into a particular circuit element. How can you get the 5 volts into 3V? And you can do so with the correct resistor values in a voltage divider circuit. How do you calculate it?
How to Calculate the Equivalent Resistance In a Parallel Circuit Step 1: List the value of each resistor in the circuit. Step 2: Calculate the equivalent resistance using the equation {eq}\dfrac{1}{R_{eq}} = \dfrac{1}{R_1} + \dfrac{1}{R_2} + ... + \dfrac{1}{R_N} {/...