Question

# A transformer has 1600 turns on its secondary and 200 turns on its primary. The primary...

A transformer has 1600 turns on its secondary and 200 turns on its primary. The primary is connected to a 20V ac source. What is the output voltage of the secondary in volts?

#### Homework Answers

Answer #1

Given:

Number of turns on the primany of transformer = n1 = 200 turns

Number of turns on the secondary of transformer = n2 = 1600 turns

Primary voltage = V1 = 20 V

To find: Secondary voltage = V2= ?

We know that for an ideal transformer,

Voltage ratio = Turns ratio

(V1 / V2) = (n1 / n2)

V2 = V1 x (n2  / n1)

V2 = 20 x [1600/200 ]

= 20 x 8

V2 = 160 V

The output voltage of the secondary is 160 volts.

Since n2 is greater then n1 then V2 is greater than V1 and the device is termed a step-up transformer. When a load is connected

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