Mar 4, 2012 #1 B bvishwanath Junior Member level 1 Joined Mar 17, 2011 Messages 19 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,391
Mar 4, 2012 #2 J jeet_asic Full Member level 3 Joined Nov 18, 2011 Messages 156 Helped 20 Reputation 40 Reaction score 19 Trophy points 1,298 Location Bangalore Activity points 2,196 assuming zener diode to be ideal , luks like option c is correct.