a) Two or more resistors in a circuit are said to be in parallel when allthe resistorsare connected to the same nodes and the samevoltage is appearing across all these elements. Two or more resistorsin a circuit are also said to be in series when the current flowingthrough all the resistors is the same. With the aid of three resistors,3Ohm's law and diagrams derive the two important total resistanceformulas for the two connections to verify these two postulatesAD To Markel

Ohm's law states that the current through a conductor between two points is directly proportional to…

Answered: Two or more resistors

Engineering

Electrical Engineering

Two or more resistors

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter7: Parallel Circuits

Section: Chapter Questions

Problem 3PP: Using the rules for parallel circuits and Ohmslaw, solve for the missing values....

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Concept explainers

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.

Question

a) Two or more resistors in a circuit are said to be in parallel when all
the resistors
are connected to the same nodes and the same
voltage is appearing across all these elements. Two or more resistors
in a circuit are also said to be in series when the current flowing
through all the resistors is the same. With the aid of three resistors,
3
Ohm's law and diagrams derive the two important total resistance
formulas for the two connections to verify these two postulates
AD To Markel

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