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

Define real time operating system, Define real time operating system. ...

Define real time operating system. Real time operating system (RTOS): The real operating system is an operating system used in embedded applications which performs tasks in a

Complete the timing diagram of an sr latch, Complete the timing diagram of ...

Complete the timing diagram of Figure of an SR latch.

What are the supplementary services, Q. What are the supplementary services...

Q. What are the supplementary services? new services are called supplementary services and some of the prominent ones are as below: Category 1: Abbreviateddialling

Determine and plot the ratios for air, 1.Determine and plot the ratios μ tr...

1.Determine and plot the ratios μ tr /μ and μ ab /μ  from 5 keV to 100 MeV for      (a) air,              (b) water,      (c) muscle,     (d) bone, and      (d) lead

Binary coded decimal addition, Q. Binary Coded Decimal Addition Now as ...

Q. Binary Coded Decimal Addition Now as in conventional decimal addition, Binary Coded Decimal addition is performed one decimal digit at a time. What happens when the sum g

Multiplexer, design a 32:1 multiplexer using two 16:1 multiplexer

design a 32:1 multiplexer using two 16:1 multiplexer

Hall effect is associated with which material, Hall Effect is associated wi...

Hall Effect is associated with (A) Conductors. (B) Semiconductors. (C) Thermistors. (D)Solders. Ans: Hall Effect is associated with semiconductors.

On state voltage drop - thyristor , On state  voltage  drop  It is...

On state  voltage  drop  It is  the maximum   instantaneous on state voltage  measured  under  pulse conditions to avoid  excessive dissipation at a particular junction  tem

Calculate the cross-sectional area, Calculate the cross-sectional area, in...

Calculate the cross-sectional area, in mm 2 , of a piece of aluminium wire 100 m long and having a resistance of 2Ω. Take the resistivity of aluminium as 0.03 x 10-6 Ωm.

Calculate the sending end voltage, A 150 km long, 3-phase, 400 kV overhead ...

A 150 km long, 3-phase, 400 kV overhead line is used to transmit 1800 MW to a distribution area at 0.9 power factor lagging. The line parameters per phase and per unit length in st

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