Q29.The value of power dissipated across the zener diode (Vz = 15 V) connected in the circuit as shown in the figure is x ร 10โ1 W. The value of x to the nearest integer is _______.
What This Question Tests
This question assesses the ability to analyze a Zener diode voltage regulator circuit, calculate the current flowing through the Zener diode, and subsequently determine the power dissipated by it.
Concepts Tested
Formulas Used
P = V_Z * I_Z
Ohm's Law
KCL
๐ NCERT Sections This Tests
14.2 โ Which Of The Statements Given In Exercise 14.1 Is True For P-Type
Physics Class 12 ยท Chapter 14
14.2 Which of the statements given in Exercise 14.1 is true for p-type semiconductos.
3.2 โ A Battery Of Emf 10 V And Internal Resistance 3 โฆ Is Connected To A
Physics Class 11 ยท Chapter 3
3.2 A battery of emf 10 V and internal resistance 3 โฆ is connected to a resistor. If the current in the circuit is 0.5 A, what is the resistance of the resistor? What is the terminal voltage of the battery when the circuit is closed?
11.3 โ The Photoelectric Cut-Off Voltage In A Certain Experiment Is 1.5 V.
Physics Class 12 ยท Chapter 11
11.3 The photoelectric cut-off voltage in a certain experiment is 1.5 V. What is the maximum kinetic energy of photoelectrons emitted?
๐ Question Details
- Chapter
- Semiconductor
- Topic
- Zener diode as voltage regulator
- Year
- 2021
- Shift
- 16 Mar Shift 1
- Q Number
- Q29
- Type
- Numerical
- NCERT Ref
- Class 12 Physics Ch 14: Semiconductor
More from this Chapter
Q74.At absolute zero, Si acts as (1) non metal (2) metal (3) insulator (4) none of these
Q75.The energy band gap is maximum in (1) metals (2) superconductors (3) insulators (4) semiconductors
Q76.The part of a transistor which is most heavily doped to produce large number of majority carriers is (1) emmiter (2) base (3) collector (4) can be any of the above three
Q46.A strip of copper and another of germanium are cooled from room temperature to 80 K. The resistance of (1) each of these decreases (2) copper strip increases and that of germanium decreases (3) copper strip decreases and that of germanium (4) each of these increases increases