The value of electrical current (I) in a circuit is determined by the value of potential difference (V) we choose for our power supply and by the value of the resistance (R) of the components we add to the circuit
potential difference = current x resistance
potential difference = current x resistance
You cannot change electrical current (I) in a circuit directly, because its size depends on both the resistance (R) of the components and the potential difference (V) across the components
