The primary winding of a transformer has 500 turns whereas its secondary has 5000 turns
The primary is connected to an a.c supply of 20V,50Hz. The secondary will have an output of
A low-loss transformer has 230V applied to the primary and gives 4.6V in the secondary.
Secondary is connected to a load which draws 5A of current. The current in the primary
is:
The number of turns in the primary and secondary coils of a transformer are 100 and 300
respectively. If the input power is 60 W then the output power is:
An aero plane with a wing span of 50m flies at 540km/hr. The component of the earth’s
magnetic field perpendicular to the velocity of the plane is 0.2 x 10-4 Wbm-2
. The potential
difference between the tips of the wings is:
