Question 37 Q 37 In only one of the circuits given in Fig 14 40, the lamp - Physics - Semiconductor Electronics Materials Devices And Simple Circuits

Question

Question 37

Q 37 In only one of the circuits given in Fig 14
40, the lamp L lights Which circuit is it ? Give reason for your
answer [Delhi 2001 C]

Pintu B. · Accepted Answer

Dear Student ,
In the first circuit the emitter base junction is not biased , so
no current flows across L , therefore hence lamp L does not light
Where as in the second circuit the emitter base junction is forward
biased so emitter and hence collector current hence flows and lamp
L lights up

Hope this helps you
Regards

Question 37 Q.37. In only one of the circuits given in Fig. 14.40, the lamp L lights . Which circuit is it ? Give reason for your answer. [Delhi 2001 C]

Question 37

Q.37. In only one of the circuits given in Fig. 14.40, the lamp L lights . Which circuit is it ? Give reason for your answer. [Delhi 2001 C]