V-i characteristics of constant current source, Physics

Assignment Help:

V-I  Characteristics  of  Constant  Current  Source

A  source  which  has  high  internal resistance  (or  impedance)  as  compared  to  load  resistance  (or  impedance)  is considered as a constant current source.

A real current source has high internal resistance. For example a real current source having an internal resistance of 10 M? with load resistance RL is illustrated in below fig. (c). When load resistance varies from 1 K? to 100 K?,

640_physics.png

∴Current varies from 1.19988 µA to 1.1881 µA.

This illustrates that load current remains almost constant and source behaves as a constant  current  source  irrespective  of  value  of  load  resistance,  which  is  illustrated in fig.(d).

789_physics.png

 

 

 

 


Related Discussions:- V-i characteristics of constant current source

What is meant by tunnelling phenomenon, What is meant by tunnelling phenome...

What is meant by tunnelling phenomenon? A tunnel diode is a high conductivity two-terminal P-N junction doped heavily about 1,000 times higher than a conventional junction diod

Faraday''s laws of electrolysis, Faraday's laws of electrolysis (M. Faraday...

Faraday's laws of electrolysis (M. Faraday) Faraday's first law of electrolysis                    At time of electrolysis the amount of chemical change is proportion

What is ancient view, What is Ancient view Ancient view: objects tend...

What is Ancient view Ancient view: objects tend to stay if they are in motion; force is needed to keep something moving. This was a natural thing to believe in because we see

No.of electrons in outermost orbt element of atomic number, Number of elect...

Number of electrons in the outermost orbit of the element of atomic number 15 is: (1) 1        (2) 3        (3) 5        (4) 7 Ans: 5

Inertial frame of reference, Inertial Frame of Reference : If in a given sy...

Inertial Frame of Reference : If in a given system a free object does not experience any acceleration or force, the system is called the inertial frame. Any reference frame that mo

Force on rocket repulsion, a jet of engine on a test tube takes in 20kg of ...

a jet of engine on a test tube takes in 20kg of air per second at a velocity of 100m/s and burns 0.8kg of fuel per second.after compression and heating the exhaut gases are ejected

Magnetism, i need a full explanation on magnetism

i need a full explanation on magnetism

Determine the number of turns of the coil, A mild steel closed magnetic cir...

A mild steel closed magnetic circuit has a mean length of 75mm and a cross-sectional area of 320.2mm 2 . A current of 0.40 a flows in a coil wound uniformly around the circuit

Surface tension, molecular explanation of surface tension

molecular explanation of surface tension

Main features of simple harmonic motion, 1. Particle travels in straight li...

1. Particle travels in straight line and the motion is periodic 2. The acceleration of particle is always proportional to the displacement from the equilibrium position and alwa

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