Question

Voltmeter needle shows deflection in the direction of flow of current or in the direction of electron flow?​

Answer 1

Answer:

When the connections are made, the voltmeter shows the voltage. As there is no direct way to access the voltage, voltmeters are designed as special sort of ammeter which can calculate the voltage by assessing the electrical current and applying Ohm's law.

There are two kinds of voltmeters. One kind has a needle, or "pointer", that points to a number that tells the number of volts.

The second kind of voltmeter shows the numbers in a "digital" . This kind of voltmeter is not damaged from "wrong" connections; instead, they show a negative number.

Explanation: