Physics · Ohm's law, electrical resistance, I-V characteristics of Ohmic and non-ohmic conductors
What is the order of magnitude of the resistance of a dry human body?
What is the order of magnitude of the resistance of a dry human body?
- A. \( 10 \Omega \)
- B. \( 10^{4} \Omega \)
- C. 10 М\Omega
- D. \( 10 \mu \Omega \)
Step-by-step solution
The resistance of a dry human body typically ranges from about 10,000 Ω (10 kΩ) to 100,000 Ω (100 kΩ), with the order of magnitude often cited as 10^4 Ω for dry conditions. Option A (10 Ω) is too low, characteristic of conductors. Option C (10 MΩ) is too high, more typical of insulators. Option D (10 μΩ) is extremely low and unrealistic. Thus, B is the closest and most reasonable choice.
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