To the given circuit the function of the diode D is
To the given circuit the function of the diode D is


Right Answer is:
To protect the base-emitter junction
SOLUTION
The absolute max voltage rating for the base-emitter voltage is the lowest of all values. This low value means the B-E junction must be protected from a high reverse voltage. A diode is used for an NPN transistor. In this manner, the logging transistor’s base-emitter junction is prevented from being reverse-biased.