What is the difference between muscular strength and muscular endurance?

Doing more repetitions with lighter weights will help you build up endurance.Muscle strength is the ability to exert a maximal amount of force for a short period of time.

The difference between Muscular Strength and Muscular Endurance is that
a.) muscular strength equals for how much strain you can handle on your muscles at one time, and how strong your muscles are

while;

b.) Muscular endurance is the ability of a muscle or group of muscles to sustain repeated contractions against a resistance for an extended period of time.