Question

Why the voltmeter should have a very high resistance explain them ?

Answer 1

Answer:

It must be placed in series with the measured branch , and must have very low resistance to avoid significant alternation of the current it is to measure .Voltmeter has high resistance because it measures the voltage difference between two different points, but it should not change the amount of current going through.

Explanation:

Answer 2

Answer:

to measure the high voltage of Current.