1 Charged Rod L A metal rod of length L = 30 cm has been charged up for a physics demonstration. It has total charge Q = 5 µC uniformly distributed along its length. (a) What is the electric potential distance x = 1 mm from one end of the rod? (b) The dielectric strength of air is 3 x 10° v/m. This is the electric field strength at which air molecules are ripped apart and air becomes a conductor instead of an insulator. That is to say, you get a spark! You are a "grounded" conductor, so the potential of your fingertip is V = 0V. Use your result from part (a) to estimate about how close can you bring your finger to the end of this rod before you get zapped.
1 Charged Rod L A metal rod of length L = 30 cm has been charged up for a physics demonstration. It has total charge Q = 5 µC uniformly distributed along its length. (a) What is the electric potential distance x = 1 mm from one end of the rod? (b) The dielectric strength of air is 3 x 10° v/m. This is the electric field strength at which air molecules are ripped apart and air becomes a conductor instead of an insulator. That is to say, you get a spark! You are a "grounded" conductor, so the potential of your fingertip is V = 0V. Use your result from part (a) to estimate about how close can you bring your finger to the end of this rod before you get zapped.
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![1 Charged Rod
P
A metal rod of length L = 30 cm has been charged up for a physics demonstration. It has total charge Q = 5 µC uniformly
distributed along its length.
(a) What is the electric potential distance x = 1 mm from one end of the rod?
(b) The dielectric strength of air is 3 x 106 v/m. This is the electric field strength at which air molecules are ripped
apart and air becomes a conductor instead of an insulator. That is to say, you get a spark!
You are a "grounded" conductor, so the potential of your fingertip is V = 0v. Use your result from part (a) to
estimate about how close can you bring your finger to the end of this rod before you get zapped.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5c23085c-d041-4baf-a967-24cb96374560%2F2ac6196d-e195-4fa8-9e08-fd79f758911b%2F8r0vrok_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1 Charged Rod
P
A metal rod of length L = 30 cm has been charged up for a physics demonstration. It has total charge Q = 5 µC uniformly
distributed along its length.
(a) What is the electric potential distance x = 1 mm from one end of the rod?
(b) The dielectric strength of air is 3 x 106 v/m. This is the electric field strength at which air molecules are ripped
apart and air becomes a conductor instead of an insulator. That is to say, you get a spark!
You are a "grounded" conductor, so the potential of your fingertip is V = 0v. Use your result from part (a) to
estimate about how close can you bring your finger to the end of this rod before you get zapped.
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