Question

How is a voltmeter connected in the circuit to measure the potential difference between two points?

Answer 1

voltmeter is always connected in parallel in electric circuits

Answer 2

It is significant to know that the voltmeter is connected in parallel way in the electric circuits.  

It is because voltmeter measures a potential different.

It includes increased level of internal resistance.

When the voltmeter is linked in parallel, the rate of current through a voltmeter is very less.

Hence, the current through a circuit is not changed.