Question

define potential difference. which device is used to control p.d

Answer 1

Hello! dear,
 
Your answer goes like this ..

Potential difference is the Electrical potential Between two points.

Potential Difference is measured by the help of "VOLTMETER"

Thank you dear.

Answer 2

Answer:

Potential difference is the electric potential between two points.

Explanation:

Volvo meter is used to measure potential difference