Q: 77 (NDA-I/2014)

A semiconducting device is connected in a series circuit with a battery and a resistance. Current is found to pass through the circuit. If the polarity of the battery is reversed, the current drops to zero. The device may be
question_subject: 
Science
question_year: 
2014
question_exam: 
NDA-I
stats: 
0,152,192,88,48,56,152