For one ear of corn, put the corn in the microwave with the husk on. Cook on high for 4 minutes. Add 2 minutes per additional ear of corn. Adjust time as needed. For more than 3 or 4 ears, boil or grill.
Cut off the bottom stem and pull husk off from the top.
from The Easiest Way to Microwave Corn on the Cob on simplyrecipes.com