In the circuit diagram shown in figure, the current through the zener diode is

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Aicharya · Accepted Answer

Potential difference across $1200 \Omega$ resistor $\mathrm{V}_{1200 \Omega}=15 \mathrm{~V}$ $\therefore \quad$ current across $1200 \Omega$ resistor, $\mathrm{I}_{1200 \Omega}=\frac{15}{1200} \quad A=12.5 \mathrm{~mA}$
Potential difference across $300 \Omega$ resistor, $V_{300 \Omega}=24-15=9 \mathrm{~V}$ $\therefore \quad$ Current across $300 \Omega$ resistor, $I_{300 \Omega}=\frac{9}{300} A=30 \mathrm{~mA}$ $\therefore \quad$ Current through zener diode, $I_z=30-12.5=17.5 \mathrm{~mA}$

In the circuit diagram shown in figure, the current through the zener diode is

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