Transformer Numerical Problem Solving

The video tutorial covers solving numerical problems related to transformers, focusing on calculating the number of turns in the secondary coil to achieve a desired voltage output. It includes three problems: determining secondary turns for a 60V output, identifying transformer type based on voltage, and calculating turns for a 2200V output. The tutorial emphasizes the importance of these problems for exams and uses the transformation ratio formula throughout.

What is the primary focus of the video tutorial?

• Learning about different types of transformers

• Solving numerical problems related to transformers

• Discussing the applications of transformers

• Understanding the history of transformers

In the first numerical problem, what is the given primary voltage?

• 440 volts

• 110 volts

• 220 volts

• 330 volts

How many turns are required in the secondary coil to achieve a 60-volt output in the first problem?

• 164

• 200

• 150

• 180

In the second numerical problem, how is the primary winding related to the secondary winding?

• Three times the secondary winding

• Half of the secondary winding

• Twice the secondary winding

• Equal to the secondary winding

What is the calculated secondary voltage in the second problem?

• 200 volts

• 150 volts

• 100 volts

• 73.33 volts

What type of transformer is identified in the second problem?

• Auto transformer

• Step-up transformer

• Step-down transformer

• Isolation transformer

In the third numerical problem, what is the primary voltage?

• 110 volts

• 220 volts

• 330 volts

• 440 volts

How many turns are needed in the secondary coil to produce a 2200-volt output in the third problem?

• 500

• 1250

• 750

• 1000

What is the common formula used to solve the numerical problems in the video?

• V2/V1 = N2/N1

• V1/V2 = N1/N2

• V2*N1 = V1*N2

• V1*N1 = V2*N2

Why are the numerical problems discussed in the video important?

• They help in understanding transformer design

• They are used in practical applications

• They are frequently asked in exams

• They are part of a research project