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Special Diodes – 1 – 2

6. Which one of the following is a Square law device ?

(a) Zener diode
(b) Crystal diode
(c) Tunnel diode
(d) 
Varactor diode

ANSWER

EXPLANATION

7. Match the given lists.
List I                                            List II
(Name of the device)                   (Application)
A. Diode                                      1. Rectification
B. Tunnel diode                         2. Microwave switching
C. Zener diode                           3. As oscillator
D. PIN diode                              4. Voltage stabilization

(a) A-1, B-3, C-4, D-2
(b) A-1, B-4, C-3, D-2
(c) A-1, B-2, C-4, D-3
(d) A-2, B-4, C-3, D-1

ANSWER

EXPLANATION

8.  A PIN diode is :

(a) A metal semiconductor diode
(b) A microwave switch
(c) A microwave detector
(d) 
None of these

ANSWER

EXPLANATION

9. Tunnel diode is :

(a) Linear resistor
(b) Current dependent resistor
(c) Voltage dependent resistor
(d)
 Non-linear resistor

ANSWER

EXPLANATION

10. One of the following microwave diodes is suitable for very low power oscillators :

(a) Tunnel diode
(b) Gunn diode
(c) PIN diode
(d) 
Zener diode

ANSWER

EXPLANATION

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