Transformers

What is NOT a component of a transformer?

• Primary

• Secondary

• Core

• Frame

A transformer with no load still has what in its primary coil?

• excitation

• nothing

• mutual inductance

What is NOT a core type?

• Shell

• Hollow

• H pattern

A typical transformer would have how many leads/connections?

• 4

• 2

• 6

• 8

• Air core

• LVDT

• Iron Core

• Positive

• Negative

• Neutral

How would you reverse the phase in a transformer?

• change direction of a winding

• make both windings the same direction

• transformers always have same polarity between windings

What would the secondary Voltage be in "B"?

• 4V

• 2V

• 8V

Assume no losses. Power in primary will be ___________ power in secondary

• more than

• less than

• equal to

Primary voltage is 28V and primary current is 2A.

What would secondary current be if secondary voltage was 7V?

• 2A

• 0.25A

• 8A