Explanation:
Electrical resistance is provided by the resistors. It is defined as the devices that opposes the flow of electric current in the circuit. Its SI unit is ohms.
Electromotive force or electrical potential is defined as the work done by the unit positive charge in moving form one point to another. Its SI unit is volt.
Electric charge per unit time is called electric current. Its SI unit is ampere.
Electric power is defined as the product of potential difference or voltage and current flowing. Its SI unit is watts.
