Compare the emf and the potential difference, Physics

Assignment Help:

Q. Compare the emf and the potential difference. Comparison of emf and potential difference

1. The difference of potentials among the two terminals of a cell in an open circuit is called the electromotive force (emf) of a cell. The difference in potentials among any two points in a closed circuit is called potential difference.

2. The emf is independent of exterior resistance of the circuit whereas potential difference is proportional to the resistance between any two points.


Related Discussions:- Compare the emf and the potential difference

Define perfectly plastic body , An object which does not get its actual con...

An object which does not get its actual configuration at all on the removal of deforming force, though short the deforming force can be is a perfectly plastic body.

rigid bodies through finite angles not a vector, Why rotation of rigid bod...

Why rotation of rigid bodies through finite angles not a vector?  Ans) Because it does not obey one of the laws of vector algebra(law of commutativity).

Define electric line of force, What should be the length of the dipole ante...

What should be the length of the dipole antenna for a carrier wave of Frequency 3 X 1O 8 Hz? Define 'electric line of force' and give its two important properties.

Define thermometry, The temperature of a body is measured indirectly by mak...

The temperature of a body is measured indirectly by making use of the fact that certain physical property of a substance changes linearly with the temperature If the value of th

Determine an expression for the current in the ring, Determine an expressio...

Determine an expression for the current in the ring jumping ring demonstration, an electromagnet provides magnetic field of B=0.2 cos 377t tesla over a circle of radius 1.2cm

Absolute and relative permeability of a medium, Distinguish between absolut...

Distinguish between absolute permeability and relative permeability of a medium Absolute Permeability: 1. Absolute permeability is the ability of the medium to allow th

Why does heat makes matter to expand, Q. Why does heat makes matter to expa...

Q. Why does heat makes matter to expand? Answer:- Water contracts as it cools similar to all other liquids until it reaches a temperature of about 4 degrees Celsius at whi

What is the minimum velocity an thermosphere, Earth's atmosphere is separat...

Earth's atmosphere is separated into four layers: The troposphere (0-10 km), the stratosphere (10-50 km), the mesosphere (50-80 km), and the thermosphere (80-500 km).

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