Question

what are the advantages of parallel combination over series

Answer 1

Consistent voltage. Most appliances require at least 110 volts of electricity. One of the advantages of parallel circuits is that they ensure all components in the circuit have the same voltage as the source. For instance, all bulbs in a string of lights have the same brightness.

Answer 2

Parallel combination provides less or minimum resistance thus the voltage remains the same

Series combination provides more or maximum resistance thus the current flowing through the conductor remains same