I am new to electrical engineering and have some basic questions.
We know current is responsible for fatality.
100 - 200 mA is lethal, while >10mA could damage.
Suppose we have a 12V battery circuit loop with a 100 ohm resistor, current is 12/100 = 120 mA
but when we put ourself in loop we wont get shocked, right?
Is that because that our skin resistance will be take into account in that situation?
so current would be 12V / (100 + whatever skin resistance) = less than 120 mA?
If that is the case, how do we know a circuit or current source is safe to touch?
because current will decrease when we touch?
and how do we ensure a stable < 10 mA current source regardless of human skin resistance?
Please can anyone answer these questions.
Thank you.
We know current is responsible for fatality.
100 - 200 mA is lethal, while >10mA could damage.
Suppose we have a 12V battery circuit loop with a 100 ohm resistor, current is 12/100 = 120 mA
but when we put ourself in loop we wont get shocked, right?
Is that because that our skin resistance will be take into account in that situation?
so current would be 12V / (100 + whatever skin resistance) = less than 120 mA?
If that is the case, how do we know a circuit or current source is safe to touch?
because current will decrease when we touch?
and how do we ensure a stable < 10 mA current source regardless of human skin resistance?
Please can anyone answer these questions.
Thank you.