Question

In the given circuit, the current through the Zener Diode is close to
$(V_Z=10\text{volts}\text{for the Zener diode})$

• A. $4.0\text{mA}$
• B. $6.0\text{mA}$
• C. $0.0\text{mA}$
• D. $6.7\text{mA}$

Answer 1

The correct option is C $0.0\text{mA}$

If we consider only left side loop, current supplied by the cell is

$I=\frac{12}{500+1500}=\frac{12}{2000}$

$\Rightarrow V_{R_2}=\frac{12}{2000}\times 1500=9\text{V}$

$\Rightarrow$ Zener diode doesnt reach breakdown condition.
So, the current flowing through it will be nearly zero.

Hence, $\left(C\right)$ is the current answer.