Skip to content
MathsGenie logo
Quick links
Open app

Course home

  1. IGCSE
  3. Physics Edexcel
  5. Question bank

Mains electricity

EasyMediumHard
12345678910111213141516171819202122232425262728
Question 23

This question is about electricity.

a.

The diagram shows four electrical circuit symbols.

Four electrical circuit symbols labeled A, B, C, and D.

Which symbol represents a fuse?

  • A
  • B
  • C
  • D
[1]
b.

Which symbol represents a semiconductor diode?

  • A
  • B
  • C
  • D
[1]
c.

An electric lawnmower connected to the mains supply has a power rating of 1100 W1100\text{ W}1100 W.

State the equation linking power, current, and voltage.

[1]
d.

Show that the current in the electric lawnmower is approximately 4.8 A4.8\text{ A}4.8 A when connected to a 230 V230\text{ V}230 V mains supply.

[2]
e.

Which of these fuses should be used with the electric lawnmower?

  • A: 3 A3\text{ A}3 A
  • B: 5 A5\text{ A}5 A
  • C: 10 A10\text{ A}10 A
  • D: 13 A13\text{ A}13 A
[1]
f.

Explain how the fuse protects the electric lawnmower when the current in the lawnmower is too high.

[2]

Mains electricity Questions

  1. IGCSE
  2. /Physics
  3. /Mains electricity