1. What is Ohm’s Law?
Ohm’s Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R).
Formula: I = V / R
2. What is the purpose of a transformer?
A transformer is used to increase (step-up) or decrease (step-down) the voltage level in an AC circuit while maintaining the same frequency.