What happens to the voltage across each branch of a parallel circuit?

In a parallel circuit, each component is connected directly to the voltage supply. This configuration ensures that all branches experience the same potential difference, which is equal to the total supply voltage. Regardless of the number of branches or the resistances present in each branch, the voltage across each branch remains constant and equal to the supply voltage.

This characteristic of parallel circuits is crucial because it allows components to function independently, receiving the same voltage as the voltage source. For example, if the supply voltage is 12 volts, then each branch will also have 12 volts across it, enabling devices like lights or sensors to operate correctly without influence from the other branches.

The other statements may imply varying behaviors, which are not applicable in a straightforward parallel circuit setup.