What do you mean by resistance, Electrical Engineering

Assignment Help:

Q. What do you mean by Resistance?

An ideal resistor is a circuit element with the property that the current through it is linearly proportional to the potential difference across its terminals,

i = v/R = Gv, or v = iR

which is known as Ohm's law, published in 1827. R is known as the resistance of the resistor with the SI unit of ohms (), and G is the reciprocal of resistance called conductance, with the SI unit of siemens (S). The circuit symbols of ?xed and variable resistors along with an illustration of Ohm's law. Most resistors used in practice are good approximations to linear resistors for large ranges of current, and their i-v characteristic (current versus voltage plot) is a straight line.


Related Discussions:- What do you mean by resistance

Frequency response of amplifiers, Q. Frequency response of amplifiers? ...

Q. Frequency response of amplifiers? All amplifiers exhibit variations of performance as the signal frequency is changed. The frequency response of an amplifier may be defined

Why two rectifier is used in smps, Its not essential that a power plant use...

Its not essential that a power plant uses only two rectifiers, it depends on the load there at the site and the capacity of the rectifier or SMPS. Assume the load at the site is 12

Explain immediate data addressing mode, Explain immediate data addressing m...

Explain immediate data addressing mode (with examples) available in microprocessors. Immediate Mode: The operand given in immediate mode is the actual data itself.

Identify the processes involved in fabrication, The first three elements of...

The first three elements of the task are: 1. To critically examine a selection of the components used on this design 2. To recommend materials to be used in making the board

Find the turns ratio of the ideal transformer, Q. Consider an ampli?er as a...

Q. Consider an ampli?er as a voltage source with an internal resistance of 72 . Find the turns ratio of the ideal transformer such that maximum power is delivered when the ampli?e

Static v- i characteristics - power semiconductor devices , Static V- I Cha...

Static V- I Characteristics A thyristor  works in  three basic  modes a.Reverse  blocking mode b.Forwards  blocking  mode and c.Forward  conducting  mode In revers

Describe about boltzmann constant, Q. Describe about Boltzmann constant? ...

Q. Describe about Boltzmann constant? The constant η in Figure (b) stands for the noise power spectral density, expressed in terms of power per unit frequency (W/Hz). Statistic

Illustrate about transfer functions, Q. Illustrate about Transfer Functions...

Q. Illustrate about Transfer Functions? The transfer function is a means by which the dynamic characteristics of devices or systems are described. The transfer function is a ma

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd