There is a large resistance in the test pen, which is used to limit the current passing through the human body The resistance of neon tube and human body is not taken into account. How big is the current flowing through human body when the pen is used?!

There is a large resistance in the test pen, which is used to limit the current passing through the human body The resistance of neon tube and human body is not taken into account. How big is the current flowing through human body when the pen is used?!

If the voltage of the home circuit is measured:
R=110KΩ=110000Ω
From I = u / R
I=U/R=220V/110000Ω=0.002A
A: when the pen is used, the current flowing through the human body is 0.002a

The safety voltage of human body is not higher than 36V. When the current passing through human body is close to 30mA, it will be dangerous to human life______ (fill in "conductor" or "insulator"), the body resistance is about______ Ω. In daily life, the basic principle of safe use of electricity is: no direct contact______ Line, not close______ Line

Human body is a conductor; resistance R = UI = 36v0.03a = 1200 Ω; experience has proved that only the voltage not higher than 36V is a safe voltage. Safe electricity principle: do not contact low-voltage charged body, not close to high-voltage charged body. So the answer is: conductor; 1200; low-voltage; high-voltage

Scientific questions
Family circuit voltage is 220 V, if the human body resistance is 1000 ohm, then the current through the human body will reach______ So be careful to avoid electric shock when using electricity at home

0.22A

The safety voltage of human body is not higher than 36V. When the current passing through human body is close to 30mA, it will be dangerous to human life______ (fill in "conductor" or "insulator"), the body resistance is about______ Ω．

Human body is a conductor; r = UI = 36v30 × 10 − 3A = 1200 Ω