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# SSC Scientific Assistant Electronics Questions 201 to 220 AMBIPi

Hi students, Welcome to Amans Maths Blogs (AMBIPi). Are you preparing for SSC Scientific Assistant and looking for SSC Scientific Assistant Electronics Questions 201 to 220 with Answer Keys? In this article, you will get previous year questions of SSC Scientific Assistant IMD (Indian Meteorological Department), which helps you in the preparation of government job of SSC IMD Scientific assistant.

## SSC Scientific Assistant IMD Previous Year Questions

SSC Scientific Assistant Electronic Question No: 201

Consider the following the semi-conductor diodes.

(i) Germanium diode

(ii) Silicon diode

(iii) Schottky diode

(iv) Tunnel diode  The correct sequence of forward voltage drop in the decreasing order is:

Option A : 1 , 3 , 2 , 4

Option B : 1 , 2 , 3 ,4

Option C : 3 , 4 , 2 , 1

Option D : 2 , 3 , 1 , 4

Option D : 2 , 3 , 1 , 4

SSC Scientific Assistant Electronic Question No: 202

The zener diode in the circuit has a zener breakdown voltage of 5 Volt . Calculate the  power dissipation in the resistance Rs.

Option A : 0.5 W

Option B : 1 W

Option C : 3.125 W

Option D : 3 W

Option C : 3.125 W

SSC Scientific Assistant Electronic Question No: 203

A diode when connected in series with the output , then the circuit is called ______.

Option A : Limiter

Option B : Series clipper

Option C : Parallel clipper

Option D : IC voltage regulator

Option B : Series clipper

SSC Scientific Assistant Electronic Question No: 204

A device is referred to as a linear device when the graph between the current and voltage across the device is a ______

Option A : Exponential

Option B : Non-exponential

Option C : Straight line

Option D : Constant

Option C : Straight line

SSC Scientific Assistant Electronic Question Paper No: 205

Calculate the hall voltage when the magnetic field is 8 A/m, current is 4, which is 5 m and the concentration of carrier is 100000.

Option A : 4.125 V

Option B : 0.3125 V

Option C : 4.2 V

Option D : 0.4 V

Option C : 0.4 V

SSC Scientific Assistant Electronic Question No: 206

Using which diode in a regulator power supply, the unregulated input voltage as compared to the regulated output voltage will be larger ?

Option A : Photo diode

Option B : p-n junction diode

Option C : Zener diode

Option D : Gunn diode

Option C : Zener diode

SSC Scientific Assistant Electronic Question No: 207

Which region covers the highest area in the transistor ?

Option A : Emitter

Option B : Collector

Option C : Base

Option D : Base emitter

Option B : Collector

SSC Scientific Assistant Electronic Question Paper No: 208

What is the region of operation of bipolar junction transistor (BJT) where both the junctions are in the forward biased?

Option A : Active region

Option B : Ohmic region

Option CSaturation region

Option D : Cut-off

Option C : Saturation region

SSC Scientific Assistant Electronic Question Paper No: 209

Which among the following the are the disadvantages of FET over BJT:

(i) It has high input resistance

(ii) It has large bandwidth

(iii) It has more noise

(iv) It only allows the flow of majority charge carrier

Option A : 1 and 3

Option B : 2 and 4

Option C : 3 and 2

Option D : 4 only

Option D : 4 only

Previous Year Question SSC Scientific Assistant Electronic : 210

Which circuit takes the less chip area in the large scale integration ?

Option A : TTL logic circuits

Option B : Bipolar circuits

Option C : High power circuits

Option D : CMOS circuits

Option D : CMOS circuits

SSC Scientific Assistant Electronic Question No: 211

The JFET in the circuit shown in figure has an IDSS = 20 mA and Vp = 5 P . The value of the resistance R3 for a drain current Ids = 12.8 mA is ______

Option A : 15.00 Ω

Option B : 47.23 Ω

Option C : 1k Ω

Option D : 78.12 Ω

Option D : 78.12 Ω

SSC Scientific Assistant Electronic Question No: 212

Consider the following

(i) MOSFET can be used as a voltage controlled capacitor

(ii) MOSFET can be used both as a voltage and a current controlled inductor.

Option A : (i) is True but (ii) is False

Option B : (ii) is True but (i) is False

Option C : Only (i) is True

Option D : Both (i) and (ii) are True

Option C : Only (i) is True

SSC Scientific Assistant Electronic Question No: 213

The voltage gain of an amplifier without feedback and a negative feedback are 140 and 30 respectively. The percentage of negative feedback (beta ) is :

Option A : 3%

Option B : 4%

Option C : 5%

Option D : 2%

Option A : 3%

SSC Scientific Assistant Electronic Question No: 214

What are the properties of a power amplifier that are to be considered while designing a good power amplifier circuit  ?

Option A : Distortion , gain  and bias stabilization

Option B : Frequency response

Option C : Sensitivity

Option D : All options are correct

Option A : Distortion , gain , and bias stabilization

SSC Scientific Assistant Electronic Question Paper No: 215

A tuned amplifier has a peak output of 9 MHz and quality factor of 90. What is the bandwidth of a tuned amplifier ?

Option A : 100 MHz

Option B : 100 kHz

Option C : 5.4 MHz

Option D : 6.05 MHz

Option B : 100 kHz

SSC Scientific Assistant Electronic Question No: 216

A common emitter transistor amplifier has a collector load of 40 k- Ω , voltage gain is 400 and input resistance is 2-kΩ. Calculate the value of voltage amplification of the amplifier.

Option A : 500

Option B : 2000

Option C : 8000

Option D : 7500

Option C : 8000

SSC Scientific Assistant Electronic Question No: 217

Determine the number of different node of pair voltages for a network with 9 nodes and 18 branches.

Option A : 7

Option B : 10

Option C : 45

Option D : 36

Option D : 36

SSC Scientific Assistant Electronic Question Paper No: 218

Which among the following theorems can be applied to any active or passive network ?

Option AThevenin’s theorem

Option B : Tellegen theorem

Option C : Superposition theorem

Option D : Norton theorem

Option B : Tellegen theorem

SSC Scientific Assistant Electronic Question Paper No: 219

The Norton equivalent between A and B for the circuit is

Option A : 2 A and 2 ohms

Option B : 3.5 A and 1 ohms

Option C : 0.41 A and 4.4 ohms

Option D : 1 A and 2 ohms

Option C : 0.41 A and 4.4 ohms

SSC Scientific Assistant Electronic Question : 220

An RLC resonant circuit has a resonance frequency of 2.5 mHz and a bandwidth of 20 kHz . If capacitance is 120 pF , then effective resistance (in ohms ) of the circuit will be

Option A : 29.5

Option B : 4.7

Option C : 14.75

Option D : 2.66