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

Compute the reactance of capacitor, Q. A capacitor of capacitance 2 μF is i...

Q. A capacitor of capacitance 2 μF is in an ac circuit of 1000 Hz. Compute the reactance of it. Solution: Capacitive reactance XC        = 1 / ω C = 1 / 2π ν C =

Einstein field equation, Einstein field equation The cornerstone of Ein...

Einstein field equation The cornerstone of Einstein's general theory of relativity, relating to the gravitational tensor G to the stress-energy tensor T through the simple equa

Hubbles law, Hubble's law (E.P. Hubble; 1925): A relationship discover...

Hubble's law (E.P. Hubble; 1925): A relationship discovered among distance & radial velocity. Further away a galaxy is away from is, the quicker it is receding away from us. T

#speedvelocityacceleration, An object is thrown downward from a 150 cliff s...

An object is thrown downward from a 150 cliff so that it makes an angle of 30 with the horizontal. (a) How fast will it be going when it hits the ground? (b) How long will it take

Charging an electrophorus by induction, Charging an Electrophorus by Induct...

Charging an Electrophorus by Induction Using a Negatively Charged Object A general physics demonstration includes the charging of an aluminum pie plate through the procedure of

Calculate the current needed to produce the flux, 1). A ring of outer diame...

1). A ring of outer diameter 80 cm is made from square of cross -section steel bar size(8 *8 cm) . If relative permeability 1200 for steel . calculate the current needed to produce

Evaluate the magnitude of the electrical field, The drawing shows the elect...

The drawing shows the electrical potential as a function of distance along the x-axis. Determine the magnitude of the electrical field in the (a) A to B, (b) B to C and (c)C to D.

How asteroids are formed, Normal 0 false false false EN...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Kirchhoffs rules, Kirchhoff's rules (G.R. Kirchhoff): loop rule ...

Kirchhoff's rules (G.R. Kirchhoff): loop rule The total of the potential differences encountered in a round trip about any closed loop in a circuit is zero. point

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