Turn on your desk lamp. Pick up the cord, with your thumb and index finger spanning the
Question:
(a) Compute an order-of-magnitude estimate for the current in your hand. You may assume that at a typical instant the conductor inside the lamp cord next to your thumb is at potential ~102 V and that the conductor next to your index finger is at ground potential (0 V). The resistance of your hand depends strongly on the thickness and the moisture content of the outer layers of your skin. Assume that the resistance of your hand between fingertip and thumb tip is ~104 Ω. You may model the cord as having rubber insulation. State the other quantities you measure or estimate and their values. Explain your reasoning.
(b) Suppose that your body is isolated from any other charges or currents. In order-of-magnitude terms describe the potential of your thumb where it contacts the cord, and the potential of your finger where it touches the cord.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
a b Suppose that the insulation between either of your fingers and the conductor adjacent is a chunk of rubber with contact area 4 mm and thickness 1 mm Its resistance is 10 m10 m 210 N R pl 4x10 m The current will be driven by 120 V through total resistance series 2x105 210 22105 25105 52 104 A It is I AV R 120 V 5x 105 where V The resistors form a voltage divider with the center of your hand at potential is the potential of the hot wire The potential difference between your finger ...View the full answer
Answered By
Charles mwangi
I am a postgraduate in chemistry (Industrial chemistry with management),with writing experience for more than 3 years.I have specialized in content development,questions,term papers and assignments.Majoring in chemistry,information science,management,human resource management,accounting,business law,marketing,psychology,excl expert ,education and engineering.I have tutored in other different platforms where my DNA includes three key aspects i.e,quality papers,timely and free from any academic malpractices.I frequently engage clients in each and every step to ensure quality service delivery.This is to ensure sustainability of the tutoring aspects as well as the credibility of the platform.
2+ Reviews
10+ Question Solved
Related Book For 
Strategic Brand Management Building Measuring and Managing Brand Equity
ISBN: 978-0132664257
4th edition
Authors: Kevin Lane Keller
Question Posted:
