Physics

Lol no thanks

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1. Why must appliances with metal cases be earthed?

  • Appliances with metal cases don't need to be earthed
  • So that the appliance does not short circuit
  • So that the case cannot become live and electrocute you
  • SO YOU DON'T GET ZAPPED BY OLD SPARKY
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Other questions in this quiz

2. What is direct current?

  • LOL WHO CARES
  • Current that passes in one direction only
  • Current that changes direction
  • a current that goes directly from the power source

3. What is the unit of charge?

  • Seconds(s)
  • Coulombs(C)
  • Joules(J)
  • Rapers(R)

4. Why are the pins of a plug made of brass?

  • HAHAHAHA WHO CARES???????????????????????
  • Brass is safer to use than other metals
  • Brass is a good conductor and does not oxidise or rust
  • Brass is a poor conductor and does not oxidise or rust

5. How do you calculate the frequency of an ac supply?

  • FREQUENCY=RAPERxPASTORAL CARE
  • LOOOOOLLLLLLLLLLLL YOU DON'T KNOW
  • f=1/T
  • f=Tx100
  • f=T/1
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Frogo

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very useful, however who ever made it is a reject.

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