(a(i))[1]
State Kirchhoff’s second law.
(a(ii))[1]
Kirchhoff’s second law is associated with the conservation of which quantity? State this quantity.
(b(i))[2]
The circuit in Fig. 5.1 is being used to compare potential differences. Apply Kirchhoff’s second law to loop $CXYDC$ in order to find the current $I$.
(b(ii))[2]
Calculate the potential difference across the length of wire $XJ$.
(b(iii))[1]
Use your answer in (ii) to state the value of $E$.
(b(iv))[1]
State why the internal resistance of cell B is not needed when determining $E$.