How can you find out if an object is charged without touching it ?

I really must know this for science. This is the question.





A wire has touched a metal can, and you must find out if it is charged without touching it, using objects you'd find around the house.








I don't get itt :(How can you find out if an object is charged without touching it ?
YOU CAN TELL IF THE CAN IS CHARGED BY PLACING ANOTHER PIECE OF METAL(A BUTTER KNIFE WILL WORK ) BY IT BUT NOT TOUCHING TO HAVE THE ELECTRIC CHARGE JUMP FROM THE CAN THAT YOU THINK IS CHARGED AND THE BUTTER KNIFE IN YOUR HAND,TO KEEP FROM GETTING A JOLT IF IT IS CHARGED MIGHT WANT TO WEAR SOME LEATHER GLOVES.How can you find out if an object is charged without touching it ?
Do you mean you need to know if a can has electricity flowing through it? Metal is a conductor and something like wood or plastic would not conduct electricity. So you need to be holding a non-conductor, but have a conductor touching the can. Something should happen (like jumping electricity or sparks).
have your little brother check it out....