Define voltage, current, and resistance and explain their relationship using Ohm’s Law.

  • Voltage (V): It is the electric potential difference between two points. It pushes electric charges through a circuit and is measured in volts (V).
  • Current (I): It is the flow of electric charge in a circuit. It is measured in amperes (A) and depends on voltage and resistance.
  • Resistance (R): It is the opposition to current flow in a circuit. It is measured in ohms (Ω).

Ohm’s Law:

The relationship between voltage, current, and resistance is given by Ohm’s Law:

V=I×RV = I \times R

This means that voltage is directly proportional to current when resistance is constant. If resistance increases, current decreases, and vice versa. This law helps in designing and analyzing electrical circuits.