In a parallel circuit, the components are connected in separate branches, and the current is divided among them. In a series circuit, the components are connected in a single loop, and the current is the same throughout.
To calculate total current in a parallel circuit, you need to add up the individual currents of each branch. This is because the current is divided among branches in a parallel circuit.
In a series circuit, the total current is equal to the current of any one component. This is because the current is the same throughout a series circuit.
To calculate the current drawn by a specific component in a parallel circuit, you need to use Ohm's Law (I = V/R) where I is the current, V is the voltage, and R is the resistance of the component.
If one component fails in a parallel circuit, the total current will decrease. This is because the current will only flow through the remaining components, and the overall resistance of the circuit will increase.