Question
Which of the following statements is incorrect for a
Zener diode in breakdown region?Solution
In the breakdown region of a Zener diode, the voltage across the diode stays nearly constant at the Zener breakdown voltage, even if the current through it changes. This property is exploited for voltage regulation. However, once breakdown occurs:
- Reverse current increases rapidly with a small increase in voltage,
- But voltage stays almost constant, due to the Zener effect or avalanche effect (depending on the breakdown voltage),
- Series resistance is externally added to limit the current and avoid thermal damage.
Scientific name of grape is:
Root secrete weak organic acids which attack the rocks and start to dissolve away the softer parts areÂ
Which of the following statements is/are true?
Statement A: Mica and biotite are the secondary minerals but also act as primary minerals.
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The time of discharge of eggs from the Graffian follicles (Ovulation) in cow is about ___ hours after the end of 18 hours estrus.
‘Khaira disease’ (also known as iron rust) of rice is caused due to:
Chromosomal aberration in which two breaks occur in a chromosome and the intercalary segment reunites in a reverse order is categorised as
Imaginary lines connecting points of equal amount of rainfall are called asÂ
The first sign of germination of the seeds isÂ
Which among the following is not a seed quality analysis?
The trade name of the insecticide Imidacloprid is:
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