The circuit shown here is used to compare the e.m.f. of two cells E₁ and E₂(E₁ > E₂). The null point is at C when the galvanometer is connected to E₁. When the galvanometer is connected to E₂, the null point will be

• A

  to the left of C

• B

  to the right of C

• C

  at C itself

• D

  nowhere on AB