Q.1 A house served by a 220V supply light, is protected by a 9-Ampere fuse.

The maximum number of 60 W bulbs in parallel that can be turned on is

(a) 11 (b) 33

(c) 22 (d) 44

Q.2 An n-channel JFET has IDSS = 1 μA & VP =–5V. The maximum

transconductance is

(a) gm = 0.4 milli mho (b) gm = 0.04milli mho

(c) gm = 0.04 mho (d) gm = 0.4 millimilli mho

Q.3 The base to base resistance of a UJT is 6 K Ohm when the emitter current is

zero. If RB1 = 3.6 K Ohm, the intrinsic stand off ratio is

(a) n = 0.66 (b) n = 0.6

(c) n = 6.0 (d) n = 3.6

Please find the complete 2010 JTO solved paper attached!