ELECTRICAL ENGINEERING DIPLOMA EXAM QUESTION PAPERS

  • KARNATAKA STATE OPEN UNIVERSITY - ELECTRICAL ENGINEERING DIPLOMA EXAM QUESTION PAPERS
  • III Semester Diploma in Electrical Engineering Examination, August 2011
  • CIRCUIT THEORY
  • Time : 3 Hours Max. Marks : 75
  • Instructions: All the questions are compulsory. Clearly mark Question Number, Part A and Part B in the Answer Sheet while attempting the questions.
  • PART – A (1×15=15)
  • 1. Draw the circuit diagram of series connection of resistors.
  • 2. Define the term voltage source.
  • 3. Draw the circuit for resistors connected in parallel.
  • 4. Define the term of current source.
  • 5. Define potential difference.
  • 6. State Ohm’s laws.
  • 7. What is Kirchhof’s laws ?
  • 8. State super position theorem.
  • 9. What do you mean by star delta transformation ?
  • 10. Draw the circuit diagram of series R-L-C circuit.
  • 11. What is impedance ?
  • 12. Draw series R-L circuit.
  • 13. Write the formula of impedance for series R-C circuit.
  • 14. State Norton’s theorem.
  • 15. Write the unit of electrical power.
  • PART – B (5×12=60)
  • 16. Derive the expression of current for series R-L-C circuit.
  • OR
  • Derive the expression of total capacitance of the capacitors when they are
  • connected in series and parallel.
  • 17. If the three resistors of 40 ohm, 50 ohm and 30 ohm are connected in series with
  • 12 v D.C supply, find the current and branch voltages.
  • OR
  • If the three resistors of 40 ohm, 50 ohm and 30 ohm are connected in parallel
  • with 12 v D.C supply, find the main current and branch currents.
  • 18. If the resistance, inductance and capacitance of 200 ohm, 5 H and 40 micro farad
  • respectively are connected in series, find current and impedance.
  • OR
  • State and prove super position theorem.
  • 19. State and explain Thevinin’s theorem.
  • OR
  • Distinguish between R-L and R-C parallel circuits.
  • 20. Describe the suitable examples of star-delta conversion.
  • OR
  • State and prove maximum power transfer theorem.
  • For more details click here or visit http://karnatakastateopenuniversity.in