# NPTEL Basic Electronics Assignment 1 Answers 2023

#### ByBrokenprogrammers

Jan 30, 2023

Hello Learners, In this Post, you will find NPTEL Basic Electronics Assignment 1 Answers 2023. All the Answers are provided below to help the students as a reference don’t straight away look for the solutions.

###### NPTEL Basic Electronics Assignment 2 Answers👇

Note: First try to solve the questions by yourself. If you find any difficulty, then look for the solutions.

## NPTEL Basic Electronics Assignment 1 Answers 2023:

#### Q.1. In the circuit shown in the figure below, we want to find V using superposition.

What is V when VS is included and IS deactivated?

• 5V
• 2.5V
• 1.25V
• 0.5V

#### Q.2. What is V when IS is included and VS deactivated?

• 2.25V
• 1.75V
• −2.5V
• −3.75V

If a resistance R= 3kΩ is connected between A and B, it would draw a current of

• 0.25mA
• 9.833mA
• 0.625mA
• 1.33mA

#### Q.4. The circuit in the figure below is a representation of a common−emitter amplifier.

What is the Thevenin voltage seen from AB (following the same sign convention as in the lectures)?

• −45.5mV
• −50mV
• −73.4mV
• −90mV

• 20Ω
• 200Ω
• 500Ω
• 1kΩ

#### Q.6. The voltageV in the figure below is given by V=k1VS1+k2VS2+k3VS3.

The constants k1, k2, k3 are, respectively,

• 7V
• 7.5V
• 8V
• 15V

• 2.4Ω
• 4.8Ω
• 10Ω

• 10.2W
• 20.4W
• 5.1W
• 2.55W

• 0.33k
• 1.2k
• 0.67k
• 3k

• 0.67mA
• 1mA
• 0.33mA
• 0.5mA

• 0.25mW
• 0.33mW
• 0.67mW
• 1.33mW

• 15V
• 7.5V
• 2V
• 10V

• 10Ω
• 2.5Ω
• 6.2Ω
• 1.6Ω

• 0.25W
• 0.625W
• 1.25W
• 2.5W

• −j3.2kΩ
• −j20kΩ
• −j5.6kΩ
• −j9.7kΩ

#### Q.18. In the circuit shownin the figure below, what is the impedance seen by the source?

• 1−j1Ω
• 0.5−j1.5Ω
• 1+j1.5Ω
• 1.4−j0.6Ω
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#### About NPTEL Basic Electronics Course:

The course is about basic electronic circuits, both analog and digital. In the analog part, diode circuits, BJT amplifiers, Op Amp circuits will be covered. In the digital part, combinatorial and sequential circuits will be covered. A unique feature of the course is extensive use of circuit simulation results in order to give a realistic picture of the circuit operation and waveforms. Assignments are designed to help the students to test their understanding of the concepts being covered. A circuit simulation package will be made available (as free download) to enable students to simulate circuits covered in the course and gain further insight in their functioning.

##### Course Layout:
• Week 1 : Lecture 1 : A brief history of electronics
• Lecture 2 : Superposition
• Lecture 3 : Useful circuit techniques-1
• Lecture 4 : Useful circuit techniques-2
• Lecture 5 : Phasors-1
• Lecture 6 : Phasors-2
• Week 2 : Lecture 7 :   RC/RL circuits in time domain-1
• Lecture 8 :   RC/RL circuits in time domain-2
• Lecture 9 :   RC/RL circuits in time domain-3
• Lecture 10 : RC/RL circuits in time domain-4
• Lecture 11 : RC/RL circuits in time domain-5
• Lecture 12 : Simulation of RC circuit
• Week 3 : Lecture 13 : Diode circuits-1
• Lecture 14 : Diode circuits-2
• Lecture 15 : Diode circuits-3
• Lecture 16 : Diode circuits-4
• Lecture 17 : Diode circuits-5
• Lecture 18 : Diode circuits-6
• Week 4 : Lecture 19 : Diode rectifiers-1
• Lecture 20 : Diode rectifiers-2
• Lecture 21 : Diode rectifiers-3
• Lecture 22 : Bipolar Junction Transistor-1
• Lecture 23 : Bipolar Junction Transistor-2
• Lecture 24 : Bipolar Junction Transistor-3
• Week 5 : Lecture 25 : BJT amplifier-1
• Lecture 26 : BJT amplifier-2
• Lecture 27 : BJT amplifier-3
• Lecture 28 : BJT amplifier-4
• Lecture 29 : BJT amplifier-5
• Lecture 30 : BJT amplifier-6
• Week 6 : Lecture 31 : BJT amplifier-7
• Lecture 32 : Introduction to op-amps
• Lecture 33 : Op-amp circuits-1
• Lecture 34 : Op-amp circuits-2
• Lecture 35 : Op-amp circuits-3
• Lecture 36 : Difference amplifier
• Week 7 : Lecture 37 : Instrumentation amplifier-1
• Lecture 38 : Instrumentation amplifier-2
• Lecture 39 : Op-amp nonidealities-1
• Lecture 40 : Op-amp nonidealities-2
• Lecture 41 : Bode plots-1
• Lecture 42 : Bode plots-2
• Week 8 : Lecture 43 : Bode plots-3
• Lecture 44 : Op-amp filters
• Lecture 45 : Simulation of op-amp filter
• Lecture 46 : Precision rectifiers-1
• Lecture 47 : Precision rectifiers-2
• Lecture 48 : Precision rectifiers-3
• Week 9 : Lecture 49 : Simulation of triangle-to-sine converter
• Lecture 50 : Schmitt triggers-1
• Lecture 51 : Schmitt triggers-2
• Lecture 52 : Schmitt triggers-3
• Lecture 53 : Sinusoidal oscillators-1
• Lecture 54 :Sinusoidal oscillators-2
• Week 10 : Lecture 55 : Introduction to digital circuits
• Lecture 56 : Boolean algebra
• Lecture 57 : Karnaugh maps
• Lecture 58 : Combinatorial circuits-1
• Lecture 59 : Combinatorial circuits-2
• Lecture 60 : Combinatorial circuits-3
• Week 11 : Lecture 61 : Introduction to sequential circuits
• Lecture 62 : Latch and flip-flop
• Lecture 63 : JK flip-flop
• Lecture 64 : D flip-flop
• Lecture 65 : Shift registers
• Lecture 66 : Counters-1
• Week 12 : Lecture 67 : Counters-2
• Lecture 68 : Simulation of a synchronous counter
• Lecture 69 : 555 timer
• Lecture 70 : Digital-to-analog conversion-1
• Lecture 71 : Digital-to-analog conversion-2
• Lecture 72 : Analog-to-digital conversion
###### CRITERIA TO GET A CERTIFICATE:

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

If you have not registered for exam kindly register Through https://examform.nptel.ac.in/