Chapter 19, Problem 20Q

To determine

Difference between analog ammeter and analog voltmeter.

Answer to Problem 20Q

Solution:

The main difference between analog ammeter and analog voltmeter is that ammeter has almost 0 resistance, while the voltmeter has very high resistance.

Explanation of Solution

Ammeter: Ammeter is a device used to measure the current in a circuit, in order to measure the actual reading of current in the circuit an ideal ammeter should have 0 resistance.

Voltmeter: Voltmeter is a device used to measure the voltage in a circuit, in order to measure the accurate reading of voltage from the circuit; the voltmeter should have infinite resistance so that no current can pass through the voltmeter.