question_answer

For the circuit shown below, the current through the Zener diode is-   [JEE Main Online Paper (Held On 10-Jan-2019 Evening]

A) 5 mA                           

B) zero

C) 14 mA  

D)                  9 mA

Correct Answer: C

Solution :

\[{{V}_{1}}=120-50=70\] \[I\times 5\times {{10}^{3}}=70\] \[I=14\text{ }mA\] \[{{V}_{1}}=50={{I}_{1}}\times 10\times {{10}^{3}}\] \[{{I}_{1}}=5\,mA\] \[{{I}_{2}}=I-{{I}_{1}}=14-5=9\,\,mA\]