Digital Logic
Max Marks: 20
Note: The Question paper is divided into three sections A, B, and C. Write Answer as per the given instruction.
Section-A (Very Short Answer Type Questions)
Note: Answer all questions. As per the nature of the question you delimit your answer in one word, one sentence or maximum up to 30 words. Each question carries 1 mark. 4×1=04
1. What charge an electron has?
2. The smallest and lightest particle in Atom is known as?
3. Define electric current
4. What is meant by resistance?
Section-B (Short Answer Questions)
Note: Answer any 2 questions. Each answer should not exceed 200 words. Each question carries 4 marks. 2×4=08
1. Discuss electric charge and electric current.
2. Explain different methods of electricity generation.
3. Explain mean free path, relaxation time and drift velocity. Establish relation between drift velocity and current of free electron.
4. State Ohm’s Law. A potential difference of 200V is applied across the ends of conductor of resistance 50Ω. Calculate the number of electron flowing throufh it in 1 second.
Section ‘C’ (Long Answer Questions)
Note: Answer any one question. You have to delimit your each answer maximum up to 800 words. Each question carries 08 marks.
Q.1 What is resistance? What are parameters on which resistance of conductor depends? Calculate the electrical conductivity of the material of a conductor of lenght 3 meter, area of cross-section 0.02mm having a resistance of 2 ohm.
Q.2 Two resistances with the value of R1, R2 are connected in (i) series and (ii) parallel. What is the equivalent resistance?
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