Physics 0625 · IGCSE · Electrical safety

Electrical safety — practice question

An electric heater is connected to the mains supply by means of a fused plug. The current in the heater is $10\,\text{A}$. The cable fitted to the heater has a rating of $15\,\text{A}$. The fuses that can be chosen are rated at $1.0\,\text{A}$, $3.0\,\text{A}$, $5.0\,\text{A}$ and $13\,\text{A}$. Which fuse should be selected?

  • A$1.0\,\text{A}$
  • B$3.0\,\text{A}$
  • C$5.0\,\text{A}$
  • D$13\,\text{A}$

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI