Showing posts with label simple. Show all posts
Showing posts with label simple. Show all posts

Thursday, 7 December 2017

Capacitive and Inductive Reactance and their explanation

Capacitive Reactance:-

"Capacitive reactance is the resistance offer by capacitor to the current."

Explanation:-

Whenever there is current flows through the capacitor there is the opposition offer by it to the current, which causes delay in its charging. And its this reactance depends upon the frequency of AC current flowing through it. the more the frequency the less its reactance will be and less the frequency the more the reactance will be. The formula for the capacitive reactance is below.


Inductive Reactance:-

"Inductive reactance is the resistance offer by inductor to the current flowing through it."

Explanation:-

When AC current flows through the inductor it offer some resistance to the current. it depends upon the frequency of current. The more the frequency the more the reactance and less the frequency less the reactance. This behaviour is of inductor when AC current flows through it.






Sunday, 26 November 2017

What is Force?

Definition:-

"Force is a reason or something that causes the change in a motion or situation of a body."

Explanation:

Force is the reason which causes change, if you want to move something or you want to do some work you have to apply force.
A force is a vector quantity. a vector quantity is a quantity that has both magnitude and direction.




Unit:

Force is a quantity that is measured using the standard metric unit known as the Newton.  
1 Newton = 1 kg • m/s2



Formula:


According to the newton second law of motion, force is the product of mass and acceleration. Means force depends on mass and acceleration of body.It means that if a body has change in its velocity(speed) or position, then its depend upon the total force acting upon him and the mass of the body. It is also known as law of inertia. Having low mass will demand less force for change in its speed.

F=m.a