The ohmmeter sends a small amount of current through the circuit and measures the voltage drop across the resistors. Using Ohm's Law (V=IR), the ohmmeter can calculate the resistance of the circuit.
No, an ohmmeter is typically only used to measure resistance in simple circuits with passive components, such as resistors. It cannot be used to measure resistance in complex circuits with active components, like transistors.
An analog ohmmeter uses a needle on a scale to indicate the resistance, while a digital ohmmeter displays the resistance as a numerical value on a screen. Both types work in a similar way, but a digital ohmmeter is more precise and easier to read.
No, an ohmmeter should only be used on circuits that are not energized. Attempting to measure resistance in a live circuit can be dangerous and may damage the ohmmeter.
The resistance reading on an ohmmeter is displayed in ohms (Ω). A higher resistance reading indicates a greater resistance in the circuit, while a lower reading indicates less resistance. The specific value will depend on the resistors used in the circuit.
