Answer:
A shock will be caused to John Travoltage when he touched the door knob after rubbing his foot on the carpet. This is due to the production of static electricity by rubbing his foot on the carpet.
What is Static electricity?
Static electricity may be defined as a type of electricity that is accumulated due to an imbalance between negative and positive charges of an object.
When John Travoltage continuously rubs his foot on the carpet, his body accumulated static electricity, and when he touched the door knob which is metal, he is shocked.
Therefore, it is well described above.
Step-by-step explanation: