2. a) Use Kirchhoff's current law to solve for the currents I1, 12, 13, 14, I5 and 16 For the circuit-2.a). b) Find the equivalent resistance across terminal P and Q in Circuit-2b) if (i) Switch S1 is ON, S2 is ON, S3 OFF and S4 OFF (ii) Switch S1 is ON, S2 is OFF, S3 ON and S4 ON (Values of all the Resistors are in Ohms). Ix lx = 3.0 ly = 11.0 'cuit-2.a) Iy 100 www R5 S2 $3 M ww S1 RG R6 www RB R8 www www R7 200 F4 S4 www 50 Circuit-2.b) 300 R5=72.0 R6 = 72.0 R7 11.0 R8=2.0

Fig: 1