Current/Voltage measuring using Ammeter/Votmeter
High voltage applied to a low voltage range may destroy the meter - and also may destroy you.
 Low voltage applied to a high voltage range will not damage the meter, or you.

High current applied to a low current range may destroy the meter - and also may destroy you.
 Low current applied to a high current range will not damage the meter, or you.



Added:

Note this stack exchange question which was asked about 15 hours after this one.

How do I choose the right replacement fuse for my multimeter?

Note that replacement is not trivial - as correctly advised by AndrejaKo.