Answer
Verified
415.5k+ views
Hint:Zener diode is defined as a properly doped $p - n$ junction diode which works in the breakdown region without damaging itself. A Zener diode is also known as a breakdown diode and it is mainly used as a voltage regulator.
Complete step by step answer:
The basic symbol of a Zener diode is given by
A Zener diode can be used as a voltage regulator or voltage stabilizer to provide a constant voltage from a source whose voltage may fluctuate over a wide range. The circuit diagram using a Zener diode as a voltage stabilizer is shown below.
The Zener diode is connected across the fluctuating voltage source through a dropping resistor of resistance ${R_S}$ . The constant voltage supply is obtained across the load resistance ${R_L}$.When the input voltage increases, the resistance of the zener diode decreases, and hence the current through the diode increases to a high value. As a result of this, a large voltage drop occurs across the dropping resistance ${R_S}$. Hence, the output voltage drop across ${R_L}$ is maintained to the desired value.
When the input value decreases, the current through the diode also increases. So now a small voltage drop takes place across the resistance ${R_S}$ and the output voltage across ${R_L}$ is maintained at the desired constant value.Thus, we get a constant voltage in spite of fluctuating input voltage. Hence, the Zener diode acts as a voltage regulator. Therefore, the Zener diode is used as an A.C. voltage regulator.
Hence, option C is the correct option.
Note:The breakdown voltage of zener voltage ${V_Z}$ depends on the concentration of doping. Both $n$ and $p$ regions of the Zener diode are heavily doped.The depletion layer of a heavily doped $p - n$ junction diode is very thin.
Complete step by step answer:
The basic symbol of a Zener diode is given by
A Zener diode can be used as a voltage regulator or voltage stabilizer to provide a constant voltage from a source whose voltage may fluctuate over a wide range. The circuit diagram using a Zener diode as a voltage stabilizer is shown below.
The Zener diode is connected across the fluctuating voltage source through a dropping resistor of resistance ${R_S}$ . The constant voltage supply is obtained across the load resistance ${R_L}$.When the input voltage increases, the resistance of the zener diode decreases, and hence the current through the diode increases to a high value. As a result of this, a large voltage drop occurs across the dropping resistance ${R_S}$. Hence, the output voltage drop across ${R_L}$ is maintained to the desired value.
When the input value decreases, the current through the diode also increases. So now a small voltage drop takes place across the resistance ${R_S}$ and the output voltage across ${R_L}$ is maintained at the desired constant value.Thus, we get a constant voltage in spite of fluctuating input voltage. Hence, the Zener diode acts as a voltage regulator. Therefore, the Zener diode is used as an A.C. voltage regulator.
Hence, option C is the correct option.
Note:The breakdown voltage of zener voltage ${V_Z}$ depends on the concentration of doping. Both $n$ and $p$ regions of the Zener diode are heavily doped.The depletion layer of a heavily doped $p - n$ junction diode is very thin.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
Which are the Top 10 Largest Countries of the World?
One cusec is equal to how many liters class 8 maths CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
The mountain range which stretches from Gujarat in class 10 social science CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths