Question 22: Semiconductors and Logic Gates

Question

In the following circuit, the reading of the ammeter will be
$($ Take Zener breakdown voltage $=4 \mathrm{~V})$
![](https://app-content.cdn.examgoal.net/fly/@width/image/jaoe38c1m9gjd2fx/8e0a966a-739b-4d0c-8a4f-8dcbd1ede23e/9d4234d0-18e3-11f0-a103-9bd1ffe79f48/file-jaoe38c1m9gjd2fy.png?format=png)

Accepted Answer

$\mathrm{V}_1=\frac{400}{100+400} 	imes 12 \mathrm{~V}=\frac{4}{5} 	imes 12=\frac{48}{5} \mathrm{~V}$ $\$
here, $\mathrm{V}_1>\mathrm{V}_{\mathrm{z}},\left(\mathrm{V}_{\mathrm{z}}=ight.$ Zener Voltage $)$ $\$
So, Zener breakdown will be take place So, voltage across $400 \Omega$ will be 4 V $\$
$\mathrm{I}=\frac{4}{400} \mathrm{~A}=\frac{1}{100 \mathrm{~A}}=10 \mathrm{~mA}$
![](https://app-content.cdn.examgoal.net/fly/@width/image/jaoe38c1m9obwzei/36373716-f45b-4373-9d66-abaaf2dd21cd/c34179a0-1d2c-11f0-ae5e-19047862b6d9/file-jaoe38c1m9obwzej.png?format=png)

Answer

60 mA

Answer

80 mA

Answer

10 mA

Answer

24 mA

Semiconductors and Logic Gates

In the following circuit, the reading of the ammeter will be ( Take Zener breakdown voltage =4 \mathrm{~V})

Choose the correct answer: