What is the resistance of the electric pen in general?
1.5 megohms is normal. The resistance inside the test pen is usually around several megohms.
When a test pen detects whether a conductor is a live wire or a neutral wire, the current through the test pen (that is, the current through the human body) I = the total voltage U applied across the test pen and the human body, divided by (/ is equivalent to the fractional line) Measure the total resistance R across the pen and the human body. The resistance inside the test pen is usually around several megohms.
High voltage test pen: used for 10kv and above projects, it is the daily testing tool for electricians;
Low voltage test pen: used for charged body detection of line voltage 500V and below.
Weak current test pen: used for testing electronic products, the general test voltage is 6v--24v. For ease of use, there is often a lead wire with a clip at the end of the pen.
