question archive By shuffling her stocking feet across a carpet a person accumulates 1µC of electrons which put her at 200 V above her surroundings
By shuffling her stocking feet across a carpet a person accumulates 1µC of electrons which put her at 200 V above her surroundings
Subject:PhysicsPrice: Bought3
By shuffling her stocking feet across a carpet a person accumulates 1µC of electrons which put her at 200 V above her surroundings. Since air will break down (and conduct electricity) at a field strength of 3 x 104 N/C, when she puts her hand out to touch the doorknob, she will create a spark, losing all her charge with average current which is an amazing, but very brief, 0.8 amp.
What is her effective capacitance?
