Current causes muscles to contract and that is dangerous especially if the heart muscle is affected.
About as dangerous as a kitchen knife. Both are very useful, but in inexperienced hands, or used carelessly, can kill you or someone else. Bottom line - If you are going to work around electricity, get the proper training! If you are using electric appliances, read, understand, and follow the instructions.
The two types are "static electricity" and "current electricity."
Whenever it CAN pass through your body - your heart, brain and muscles are all sensitive to current flows.
electricity
Lightning is a dangerous form of static electricity.
Please be careful around that dangerous electricity.
current x
The most dangerous place to be when electricity is present is in direct contact with a charged conductor. The next most dangerous place is where there is liquid water and electricity.
Grounding and bonding all non-current carrying metal parts will allow static electricity to go to ground, so that it will not buildup to a dangerous level.
AC specifies alternating current and DC means direct current.
electric current (alternating)
It is current. Because current electricity has moving charges while static electricity has stationary charges.