Voltmeter reading - PowerPoint PPT Presentation

Resistors

Resistors. How can we intentionally change the amount of resistance in our circuit?. Which of the three parts of Ohm’s triangle do we have the most control over?. Resistance Voltage Current is a function of these two What if we want to control the current or alter the voltage?

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727 views • 37 slides

Internal Resistance

Internal Resistance. Batteries and Cells. Cells and batteries come in all shapes and sizes. They all have their ‘voltage’ marked on the side. This is called the e.m.f. ( E ) of the battery or cell. e.m.f. stands for electromotive force.

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355 views • 8 slides

Power Factor- Parallel Circuits

Power Factor- Parallel Circuits. Determine R and X given V, I and P V is found from a Voltmeter I is found from an ammeter P is found from a wattmeter. Definitions. G = (1/R) is called conductance B = (1/X) is called sucepatance B L (for an inductor) = (1/j w L) = (-j/ w L)

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198 views • 6 slides

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