A Zener diode is a silicon semiconductor device that permits current to flow in either a forward or reverse direction. The diode consists of a special, heavily doped p-n junction, designed to conduct in the reverse direction when a certain specified voltage is reached.
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What is Zener diode and its application?
A Zener diode is a silicon semiconductor device that permits current to flow in either a forward or reverse direction. The diode consists of a special, heavily doped p-n junction, designed to conduct in the reverse direction when a certain specified voltage is reached.
Why is zener diode reverse biased?
When connected in parallel with a variable voltage source so that it is reverse biased, a Zener diode conducts when the voltage reaches the diode’s reverse breakdown voltage. From that point on, the low impedance of the diode keeps the voltage across the diode at that value.
Why should we use active voice in Business Writing?
Writing in an active voice: Uses fewer words, making the writing more concise and efficient; Creates a faster-moving narrative, which makes for easier writing and more engaging reading; Cleans up the sentence and helps prevent grammatical mistakes.
Is Zener diode active or passive?
Note: A diode may be active or passive depending upon its property. A normal PN junction diode is passive whereas tunnel diode or zener diode is active component due to their negative resistance property.
What is active element?
An active element is an element capable of generating electrical energy. The essential role of this active element is to magnify an input signal to yield a significantly larger output signal. An active element is an element capable of generating electrical energy.
Is photo diode active or passive?
Photo diode is a passive device.
What is active and passive elements?
Active components are the elements or devices which are capable of providing or delivers energy to the circuit. Passive components are the devices which do not require any external source for the operation and are capable of storing energy in the form of voltage or current in the circuit.
When should passive voice be used in business writing quizlet?
Use passive voice when you want to emphasize the passive subject. “The computer was invented in the 1940’s.” Use the passive voice when writing scientific prose. “185 secretaries were interviewed.”
Is a resistor active or passive?
Resistors. A resistor is taken as a passive element since it can not deliver any energy to a circuit. Instead resistors can only receive energy which they can dissipate as heat as long as current flows through it.
Is a diode active or passive?
Components incapable of controlling current by means of another electrical signal are called passive devices. Resistors, capacitors, inductors, transformers, and even diodes are all considered passive devices.
Which of the following is a passive element?
Passive elements include resistances, capacitors, and coils (also called inductors). These components are labeled in circuit diagrams as Rs, Cs and Ls, respectively. In most circuits, they are connected to active elements, typically semiconductor devices such as amplifiers and digital logic chips.
Is led active or passive?
Some examples of active devices include solenoids, relays, LEDs, and microcontrollers or any other integrated chip that uses an external supply voltage (or current) to perform work or the intended function. LEDs are light emitting diodes, and we state above that diodes are considered passive.