A good rule of thumb is to start with 30-45 seconds per ear and adjust from there. You can always cook it for a bit longer if you prefer your corn more tender. And, if you're cooking multiple ears at once, just make sure to adjust the cooking time accordingly.
Can You Reheat Corn on the Cob? Here's How - Foods Questions
Now, I know some of you might be thinking, "But what about the nuclear taste that microwaves can give food?" Fear not, friends! If you follow the simple steps outlined above, you'll be enjoying delicious, non-nuclear corn on the cob in no time.