The magnetic field produced by an alternating current can be thought of as a ............................... magnetic field.

The transformer is a device used to .......... the value of a voltage.

If a transformer reduces voltage, it is called a....................... transformer.

If a transformer increases voltage, it is called a ......... transformer.

The winding of a transformer which is connected to a source of energy is called the ....... winding.

If a transformer is operated with direct current, the current must be ........ in value, or it must be broken up into pulses.

A Transformer is an example of a ........................... inductance

The thin sheets of steel from which transformer cores are made are called...................

A laminated transformer core reduces the amount of energy that is wasted in the form of........

The value of the second winding voltage of an iron-core transformer depends upon the ....... of turns, this winding contains as compared to the number of ........ winding turns.

Some power transformers are equipped with more than one..............winding.

A transformer cannot deliver more..................to a load from its secondary winding than is supplied to the primary winding.

The voltage induced across a coil by its own moving magnetic field is an example of ...........inductance.

The unit of inductance is ......................

The most common transformer defects are__________ and ____________.