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• AIPMT 2010 Physics

AIPMT 2010 Physics

  

Q. 29.   A 220 volts input is supplied to a transformer. The output circuit draws a current
of 2.0 ampere at 440 volts. If the efficiency of the transformer is 80%, the current drawn by the primary windings of the transformer is:

1. 3.6 ampere
2. 2.8 ampere
3. 2.5 ampere
4. 5.0 ampere

Sol.

Answer : (4)

Q. 30.  In the given circuit the reading of voltmeter V1 and V2 are 300 volts each. The reading of the voltmeter V3 and ammeter A are respectively:

   

1. 150 V, 2.2 A
2. 220 V, 2.2 A
3. 220 V, 2.0 A
4. 100 V, 2.0 A

Sol.

Answer : (2)