Physics 9702 · AS & A Level · Potential dividers

Potential dividers — practice question

The circuit diagram contains two resistors with resistances of $10\,\text{k}\Omega$ and $50\,\text{k}\Omega$, together with a component $Y$. A $6.0\,\text{V}$ power supply is applied. The electric potential of the lower wire is $0\,\text{V}$. The current in component $Y$ is negligible. What is the electric potential at junction $X$?

  • A$1.0\,\text{V}$
  • B$1.2\,\text{V}$
  • C$4.8\,\text{V}$
  • D$5.0\,\text{V}$

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