A current of $6 \mathrm{A}$ enters one corner $P$ of an equilateral triangle $PQR$ having $3$ wires of resistance $2 \mathrm{\Omega }$ each and leaves by the corner $R\mathit{.}$ Then the currents $I_1$ and $I_2$ are 

In the circuit given, the current relation to a balanced Wheatstone's bridge is:

Find equivalent resistance between X and Y

Thirteen resistances each of resistance $R \mathrm{\Omega }$ are connected in the circuit, as shown in the following figure. The effective resistance between $A$ and $B$ is

Find the equivalent resistance across the terminals of e.m.f. source of $24 \mathrm{V}$ for the circuit shown in figure