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What is the procedure here!

  • Thread starter PepeF.
  • Start date
1. The problem statement, all variables and given/known data

The damage caused by electric shock depends
on the current flowing through the body;
1 mA can be felt and 5 mA is painful. Above
15 mA, a person loses muscle control, and 70
mA can be fatal. A person with dry skin has a
resistance from one arm to the other of about
1.1 × 10^5
. When skin is wet, the resistance
drops to about 5100
What is the minimum voltage placed across
the arms that would produce a current that
could be felt by a person with dry skin?
Answer in units of V.

2. Relevant equations


3. The attempt at a solution

i want to know the procedure to solve this problem
i have tried, but i don't quite understand the problem
Last edited:


Homework Helper
Gold Member
You haven't specified the units of resistance, but assuming you have them there with you, the resistance is "R" in the equation. The current is expressed as "I" in the equation. "V" is the voltage. And you have the equation V = IR, so...

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