Charge Integral

Friday, 10 August 2018

4:17 PM

 

 

Charges move from one place to another (transfer of energy)

 

Current - measured in amperes (A) - Coulombs per Second -

 

DC Current (DC)  Current whose direction remains constant with time

AC Current (AC)  Current whose direction varies with time

 

Voltage

Electrons move when there is a difference in charge

Voltage is defined as the energy (W) required to move of unit of charge (q) from a relative point to another

One volt is defined as one joule per coulomb
 

 

If 10C of electric charge passes a given point in 1000s, what is the mean current

 

0.1C of electric charge has 100J of energy. What is the voltage of that charge?

 

Power

Power is the rate of change of energy

 

Power is measured In volts - joules per second