For effective measurement, what resistance level is preferred for a multimeter?

For effective measurement using a multimeter, a high resistance level is preferred because it allows for more accurate measurements of voltage, current, and resistance without significantly drawing power from the circuit being tested. A multimeter with high input resistance minimizes its impact on the circuit by preventing it from overriding the parameters being measured. This is particularly important in applications such as voltage measurement, where high input resistance ensures that the meter does not alter the voltage across the component.

In contrast, a low resistance level might cause the multimeter to affect the circuit’s operation, leading to inaccurate readings. A medium or variable resistance might not provide a consistent level of accuracy in measures across various components or circuits. Therefore, high resistance is optimal for ensuring minimal influence on the measurements while maximizing accuracy.