Answer
See below.
Work Step by Step
In the first case, the current passes through your heart.
In the second case, it only passes through your forearm, so you would be burned, but likely survive.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.