Download MBBS TMU 2nd Year 2019 MBS201 Pathology II Question Paper

1. 1. Define active and passive elements.
   2. State Kirchhoff's laws.
   3. Define RMS value and average value.
   4. Define Quality factor.
   5. Define mutual inductance and coefficient of coupling.

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   6. List the parts of a transformer.
   7. Define slip and synchronous speed of induction motor.
   8. List different types of single phase induction motors.
   9. Define load factor and power factor.
   10. What are the different types of tariffs?

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PART-B (5 x 10 = 50 Marks)

Note: Answer all questions choosing either A or B from each question.

2. A. Determine the current supplied by each battery in the circuit shown below using nodal analysis.

   (OR)

   B. Using Thevenin’s theorem, find the current through 10Ω resistor in the circuit shown below.

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3. A. A series RLC circuit has R = 10 Ω, L = 100 mH and C = 10 µF. Calculate (i) Q-factor (ii) Bandwidth (iii) Half power frequencies.

   (OR)

   B. An alternating voltage of 200 V is applied to a series circuit consisting of a resistance of 20 Ω, an inductance of 0.2 H and a capacitance of 55 µF. Determine (i) the impedance of the circuit (ii) the current (iii) the power factor.
4. A. Derive the EMF equation of a single phase transformer.

   (OR)

   B. A 25 kVA, 2200/220 V, single phase transformer has the following equivalent circuit parameters referred to the high voltage side: R₀₁ = 3.5 Ω; X₀₁ = 6.5 Ω. Determine the secondary terminal voltage when supplying full load at a power factor of 0.8 lagging.
5. A. Explain the principle of operation of a three phase induction motor.

   (OR)

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   B. Explain the construction and principle of operation of a shaded pole induction motor.
6. A. Explain the working of a nuclear power plant with the help of a neat diagram.

   (OR)

   B. Explain different methods of improving power factor.

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