What would be the result if a meter set to current is connected to a voltage source?

When a meter set to measure current is connected to a voltage source, a significant potential difference is present across the terminals of the meter. Current meters, often designed to have very low internal resistance to ensure accurate current measurements, can create a direct path for current flow if connected across a voltage source. This can lead to an overwhelming amount of current flowing through the meter, which it is not designed to handle.

If the current exceeds the meter's rating, it can cause the internal components to fail, which often results in blowing a fuse within the meter. Fuses are safety devices designed to protect electrical equipment from excessive current, and in this case, the fuse would blow as a protective measure to prevent damage to the meter's circuitry.

The other options do not accurately reflect the behavior of a meter under such conditions. Reading maximum voltage does not apply because the meter is not configured to measure voltage. A short circuit typically refers to an unintended path that bypasses the intended circuit, whereas the situation here describes a deliberate connection of a current meter to a voltage source. Overload indicators may signal that the device is overloading, but the immediate consequence of such a scenario would more commonly be a blown fuse rather than just an indicator lighting up.