Answer:
The difference between potentials on either side of a resistor is called voltage drop.
Step-by-step explanation:
The difference between potentials on either side of a resistor is called voltage drop. The voltage drop across the resistor can be calculated using Ohm's law i.e. multiplying the current flowing in the circuit with the resistance.
In parallel combination of resistor, the potential drop or the voltage drop across the each resistor is same while in case of series combination of resistor the potential drop across the each resistor divides.