Why are we advised not to touch electrical switches with wet hands?

Water is a good conductor of electricity, especially when mixed with impurities. When hands are wet:

The skin’s resistance decreases.

A larger current can pass through the body if contact is made with a live wire.

This can cause electric shock or serious injury.

Dry hands have higher resistance, reducing the risk of electric shock.

 

Related Questions:

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  4. What is the resistance across an open switch and a closed switch of a circuit?
  5. Why is a bird sitting on a high-voltage transmission line not electrocuted? Why does it get electrocuted when it touches another wire?
  6. 5. How can you arrange five resistances to form a circuit with resistance smaller than any given resistance?
  7. 6. You are given wires, each with resistance . What is the ratio of maximum to minimum resistance that can be obtained?
  8. Two electric bulbs marked 100 W, 220 V and 200 W, 220 V have tungsten filaments of the same length. Which bulb has a thicker filament?
  9. Why is it dangerous to touch a live wire while standing barefoot on the earth?
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  12. Define and explain the term electric current. What is the difference between electronic current and conventional current?
  13. How can you differentiate between emf and potential difference? What do you mean by emf? Is it really a force? Explain
  14. Explain Ohm’s Law. What are its limitations? Differentiate between ohmic and non-ohmic conductors.
  15. Analyze IV characteristic graphs for a metallic conductor, an incandescent bulb, and a thermistor to determine ohmic and non-ohmic behavior.
  16. Define resistance and its unit. What is the cause of resistance? On what factors does the resistance of a metallic conductor depend?
  17. Physics 10 MCQ
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