A transformer having efficiency of 90 percent is working on 200v

  1. [Solved] A transformer having efficiency of 90% is
  2. I need help with A transformer having efficiency of 90% is working on 200V and 3kW power supply. If the current in the secondary coil is 6A, the voltage across the secondary coil and the current in the primary coil respectively are:
  3. Answered: A transformer having efficiency of 90%…


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[Solved] A transformer having efficiency of 90% is

Transcribed Image Text: A transformer having efficiency of 90% is working on 200V and 3kW power supply. If the current in the secondary coil is 6A, the voltage across the secondary coil and the current in the primary coil respectively are : (a) 300 V, 15A (c) 450V, 13.5A (b) 450 V, 15A (d) 600V, 15A • Expert Answer *SolutionGPT is trained through our 100K subject matter experts using GPT-4

I need help with A transformer having efficiency of 90% is working on 200V and 3kW power supply. If the current in the secondary coil is 6A, the voltage across the secondary coil and the current in the primary coil respectively are:

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Answered: A transformer having efficiency of 90%…

(a) The plug-in transformer for a laptop computer puts out 7.50 V and can supply a maximum current of 2.00 A. What is the maximum input current if the input voltage is 240 V? Assume 100% ef?ciency. (b) If the actual efficiency is less man 100%, would the input current need to be greater or smaller? Explain. Check Your Understanding A transformer steps the line voltage down from 110 to 9.0 V so that a current of 0.50 A can be delivered to a doorbell (a) What is the ratio of the number of turns in the primary and secondary windings? (b) What is the current in the primary winding? (c) What is the resistance seen by the 110-V source? A step-up transformer is designed so that the output of its secondary winding is 2000 V(rms) when the primary winding is connected to a 110-V (rms) line voltage, (a) If there are 100 turns in the primary winding, how many turns are there in the secondary winding? (b) If a resistor connected across the secondary winding draws an rms current of 0.75 A. what is the current in die primary winding? 12. A 600 kVA, 2000/200V transformer has a primary winding resistance of 0.6Ω and a secondary winding resistance of 0.001 Ω. The iron loss is 1.6 kW. If the power factor of the load is 0.8, determine the efficiency of the transformer on half load. Also, find the regulation, if the secondary voltage is 183V.

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