what happens when batteries are placed in the inverted position (positive and negative) and why is it dangerous do do it?

Question

what happens when batteries are placed in the inverted position (positive and negative) and why is it dangerous do do it?

In: Chemistry

Answer 1

you send the current the wrong way.

For some devices such as an old lightbulb it won’t make much if any difference. For LED’s you will blow them and circuit boards or computerchips can be damaged by the current going the wrong way.

~~Electric motors can switch to become generators and vice versa with a reversed current so they may not play well either~~

As pointed out by other users a motor will simply reverse direction. If you turn it using outside force then it becomes a generator