Download MBBS TMU Final Year 2018 MBS404 General Surgery II Question Paper

PART-A (14 Marks)

1. 1. Define Ohm’s Law.
   2. Define Kirchhoff’s Laws.
   3. Define RMS value.
   4. Define power factor.
   5. Define principle of operation of DC motor.

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   6. Define back EMF.
   7. Define regulation of a transformer.

PART-B (56 Marks)

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

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2. a) State and explain Thevenin’s theorem.

   b) Find the Thevenin’s equivalent circuit across AB for the circuit shown below.

3. a) Derive the RMS value and Average value of a sinusoidal alternating quantity.

   b) A 50 Hz sinusoidal voltage of 200 V (rms) is applied to a series RL circuit. If the resistance is 5 Ω and the inductance is 0.01 H, find:

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   1. Impedance
   2. Current
   3. Power factor
   4. Power consumed.

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4. Explain the construction and working principle of a single phase transformer.

5. a) Explain the constructional details of a DC machine.

   b) Derive the torque equation of a DC motor.

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6. Explain the principle of operation of the following electrical instruments.

   1. Moving coil
   2. Moving iron

7. Write short notes on the following.

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   1. MCB
   2. Earthing

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