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Lab Manuals for Basic Electrical And Electronics Engineering - BEEE By nagendababu vasa

  • Basic Electrical And Electronics Engineering - BEEE
  • Practical
  • JNTU HYDERABAD - JNTUH
  • Electrical and Electronics Engineering
  • 144 Views
  • 7 Offline Downloads
  • Uploaded 1 month ago
Nagendababu Vasa
Nagendababu Vasa
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PROCEDURE:- 1) Connect the battery eliminator, ammeter, the given coil, rheostat and key (if necessary) in series. 2) The voltmeter is connected in parallel connection across the given coil. The circuit is closed. 3) Now the rheostat is adjusted so that a constant current flows through the coil. Note down the ammeter reading I and the corresponding potential difference across the coil in the voltmeter as V. Use the formula to calculate the resistance of the coil. 4) The experiment is repeated for different values of current and the corresponding potential difference is noted. Calculate the value in each trial. These values will be found to be a constant. Thus verifying Ohm's law. OBSERVATION TABLE:- Trail no. Ammeter reading I (ampere) Voltmeter reading V(volt) Resistance of coil R= V/ I (ohm) 1 2 3 4 5 RESULT:- By observing the observation table, it is proved that the ratio of potential difference and current is constant .Thus, potential difference at the ends of the conductor is directly proportional to the current flowing through it. Thus, ohm’s law is verified by this experiment. PRECAUTIONS: - 1) All the connection should be tight. 2) Ammeter is always connected in series in the circuit while voltmeter is parallel to the conductor. 3) The electrical current should not flow the circuit for long time, Otherwise its temperature will increase and the result will be affected. 4) Maximum reading of voltmeter should be greater than the electromotive force of the cell. 5) It should be care that the values of the components of the circuit is does not exceed to their ratings (maximum value). 6) Before the circuit connection it should be check out working condition of all the Componen 2

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LABORATORY MATERIAL EE0211 – ELECTRICAL CIRCUITS LAB DEPARTMENT OF ELECTRICAL & ELECTRONICS ENGINEERING FACULTY OF ENGINEERING & TECHNOLOGY SRM UNIVERSITY, Kattankulathur – 603 203 1

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CONTENTS Sl.No. Name of the Experiments Page No. 1 Verification of Kirchoff’s laws 3 2 Verification of Superposition theorem 6 3 Verification of Thevenin’s & Norton’s Theorem 9 4 Verification of Maximum Power Transfer theorem 15 5 Power measurement in 3 phase unbalanced circuits 19 6 Power measurement in 3 phase balanced circuits 20 7 Power measurement using 3 voltmeter & 3 ammeter 22 method 8 Circuit analysis using CRO 26 9 Circuit transients by digital simulation 28 10 Study of resonance 30 2

Lecture Notes