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Question 27 A. A transformer has an input voltage of 100 V and an output voltage...

Question 27

A. A transformer has an input voltage of 100 V and an output voltage of 10,000 volts. If the primary coil has 100 turns and the input current is 2 A, what is the output current, and how many turns does the secondary coil have?

B. What is the flux through a loop of wire with 20 turns having a circular shape with a radius of 5.0 cm when it is placed with its face perpendicular to a 1.5 T magnetic field?

c. When a magnetic field is changed from 0 T to 1.5 T, an emf of 2.5 V is created in a loop of wire with a radius of 5.0 cm. How much time did it take for the magnetic field to change ?

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Homework Answers

Answer #1

A)

From Transformer turns ration

b)

Area of circular loop is

The Magnetic flux through the loop is

c)

Area of circular loop is

Induced emf is given by

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