Find the reading of ammeter (A) and voltmeter (V) shown in figure assuming the instruments to be ideal.

 

Distributing the currents in the circuit according to Kirchoffs law is shown in the figure. In ideal voltmeter current = 0. Applying Kirchoffs law in mesh ABCDA

$i.e.,I_1=6A$

Now apply Kirchhoffs law in AFBA 

$B-(I-I_1)\times 10-6+3I_1=0$

$i.e.,10I-13I_1=2orI=\frac{2}{10}+\frac{13}{10}\times 6=8A$