Diode

Zener breakdown occurs in P-N junction having p and n both:

• Lightly doped and have wide depletion layer

• Lightly doped and have wide depletion layer

• Heavily doped and have narrow depletion layer

• Heavily doped and have wide depletion layer

A 5V Battery is connected across the points X and Y. Assume D1 and D2 to be normal silicon diodes. Find the current supplied by the battery if the +ve terminal of the battery is connected to point X

• 0.5A

• 0.43A

• 0.86A

• 1.5A

In Zener regulated power supply, a Zener diode with V_Z = 6v is used for regulation. the load current is 4mA and the unregulated input voltage is 10V. to get a Zener current five times the load current the value of series resistor Rs is nearly

• 150Ω

• 167Ω

• 175Ω

• 159Ω

Choose the correct answer from the option given

• (A)-IV,(B)-(I),(C)-(II),(D)-(III)

• (A)-(I),(B)-(III),(C)-(IV),(D)-(II)

• (A)-(I),(B)-(III),(C)-(IV),(D)-(II)

• None of the above

Zener Diode is mostly used as

• Half-wave rectifier

• Full-wave rectifier

• Voltage Regulation

• LED

If dopping in the P region is high then N region:

• Depletion layer will ore towards P

• Depletion layer will more towards N

• Depletion layer will remain unchanged

• None of these

Ripple factor of a half wave rectifier is

• 1.21

• 0.08

• 0.61

• 2.14

The output waveform for the given circuit is (The diodes are ideal)

• 
• 
• 
• 

Which of the following diode having no depletion layer and also know as hot carrier diode

• PN junction

• Shockley Diode

• Step Recovery Diode

• Schottky Diode

For the circuit shown below with ideal diodes, the output will be

• V out = V in for V in >0

• V out = V in for V in <0

• V out= -V in for V in >0

• V out= -V in for V in <0