No-load current in a transformer – McqOptions

MCQOPTIONS

1.	No-load current in a transformer
A.	Lags behind the voltage by about 75 deg
B.	leads the voltage by about 75
C.	lags behind the voltage by about 15
D.	leads the voltage by about 15
Answer» B. leads the voltage by about 75

Discussion

No Comment Found

Related MCQs

The turns ratio required to match an 80 source to a 320 load is
If a transformer has 50 turns in the primary winding and 10 turns in the secondary winding, what is the reflective resistance if the secondary load resistance is 250 ?
A transformer has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is
The primary of a transformer is connected to a 6 V battery. The turns ratio is 1:3 and the secondary load, , is 100 . The voltage across the load is
When a 200 load resistor is connected across the secondary winding of a transformer with a turns ratio of 4, the source "sees" a reflective load of
A transformer with a 110 V primary has a 15:1 turns ratio. The load resistance, , is 120 . What is the approximate voltage across the load?
A certain amplifier has 600 internal resistance looking from its output. In order to provide maximum power to a 4 speaker, what turns ratio must be used in the coupling transformer?
The primary coil of a transformer is connected to a 60 V ac source. The secondary coil is connected to a 330 load. The turns ratio is 3:1. What is the secondary voltage?
Losses which occur in rotating electric machines and do not occur in trans formers are
In a given transformer for a given applied voltage, losses which remain constant irrespective of load changes are