Current is measured in open circuits with a DMM by using the meter leads for loads of ___.

In measuring current in open circuits with a Digital Multimeter (DMM), it is essential to be aware of the current limits specified for the meter to ensure accurate readings and avoid damaging the instrument. When working with a DMM, the meter leads are designed to handle specific current ranges safely.

Choosing 1 amp or less as the correct amount makes sense because many DMMs have a primary current measurement function that is optimized for low current applications, such as those found in electronic circuits or small loads. This rating helps ensure that the multimeter is not overloaded, which can cause the internal shunts or fuses to blow, leading to inaccurate readings or damage to the tool.

Typically, while some DMMs may handle more than 1 amp, for the purpose of basic measurements in smaller circuits, 1 amp is a common safe limit that applies to many handheld multimeters in practical use, allowing users to monitor low-power devices or systems without risk. This makes option B the most appropriate choice considering the typical guidelines for using DMMs in everyday electrical scenarios.