If the voltage across the plates is increasing at the rate of 220 V/s, what is the displacement current in the capacitor

Complete Question

A parallel-plate capacitor has square plates 20 cm on a side and 0.50 cm apart. If the voltage across the plates is increasing at the rate of 220 V/s, what is the displacement current in the capacitor?

The value is  

Explanation:

From the question we are told that

       The  length and breath of the square plate is  

        The  distance of separation between each plate is

       The rate of voltage  increase is  

Generally the charge on the plate is mathematically represented as

Now C is the capacitance of the capacitor which is mathematically represented as

Here A is the cross-sectional area which is mathematically represented as

=>  

=>  

So  

Now the change of the charge flowing through the plates with time is mathematically represented as

So  

Generally  

So

the higher the current the higher the mag field around it the higher the influence on the compass

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.