Physics 9702 · AS & A Level · Resistance and resistivity

Resistance and resistivity — practice question

A pair of resistors with resistances $R_1$ and $R_2$ are joined in parallel. What is the total resistance between X and Y?

  • A$R_1 + R_2$
  • B$\frac{R_1 R_2}{R_1 + R_2}$
  • C$\frac{R_1 + R_2}{R_1 R_2}$
  • D$\frac{R_1}{R_2}$

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