Which is true? Resistance is the ratio of the potential difference to the current. Resistance is the ratio of the current to the potential difference. Resistance is the product of the potential difference and the current.

Resistance is the ratio of potential difference to the current.

Explanation: In electronics, resistance is defined as the obstruction in the path of current flowing in a circuit.

According to the Ohm's law the relation between resistance, current and potential difference is expressed as:

Voltage drop across the terminals of a circuit = Current flowing in the circuit resistance offered by the circuit.

V = I R

Here V is in Volts

I is in Ampere

R is in Ohms

So, resistance can be defined as the ratio of potential difference to the current.