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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.
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That was made possible thanks to the trusty resistor. By placing a resistor behind a LED in a circuit, you get all of the brilliant lights without anything burning out! The value of a resistor is its resistance, measured in Ohms (Ω).If you have ever taken a basic electronics course i...
I understand most LCR meters cannot tolerate much resistance when making an inductive measurement. Could I make a resonant circuit with the resistor and a known capacitance and stimulate it with a step response and observe the response on a 'scope and determine the inductance?Lastly, I don't...
When n resistors are connected in parallel, finding the equivalent resistance of the parallel resistors.The total resistance in a parallel circuit is equal to the inverse of the sum of the inverse of each individual resistances. Therefore, for every circuit with n number of resistors ...
R = Resistance VL = Loaded Voltage RL = Resistor Value V = I · R VL = I · RL 1.446V = I · 4Ω I =1.446V4Ω I = 0.3615A We will then useKirchhoff’s Voltage Lawto determine the voltage across the internal resistor in the battery. This value is also the voltag...
Consider that different circuit arrangements will require different calculations for the resistance than the one illustrated below. Determine or estimate the forward voltage of the LED. Remember that the forward voltage is the minimum voltage required across the LED for it to emit light. Ask the man...
How would you measure the resistance of an electrical device, such as a lamp, by the voltmeter-ammeter method? Electrical Resistance: Electrical resistance is an electrical property of a material that quantifies its ability to resist or hinder the flow of e...
Precision resistors, which have more precise values than standard resistors, have five color bands. Four of the bands tell you the nominal value. The fifth band tells you the tolerance. You can count on the actual resistance of a precision resistor being really close to its nominal value. So...