Question

During a fault in a 3 prong device, which wire will the surplus charge travel down and why is this? can you please state all the physics and details behind this answer please.

Answer 1

• In 3 prong devices there are 3pins basically we use 2 pins
• But if we see some circuits have 3 prong devices for more safety the bigger and thicker pin plays an important role let we check why its important
  • Normally many circuits contains capacitor and inductors they store some energy ,when we insert the plug then the charges are discharged through the earth pin (bigger one)
  • And it have more thickness to flow the charges fast for discharge
  • And also it have more length compare to normal one because when we insert plug first earth pin inserted so discharge takes place
  • Then circuit is protected from short circuit happen with capacitor and inductor