Electrical Transformers

A simple transformer has 3,000 turns on the primary winding and 1,000 turns on the secondary winding. What is the turns ratio of the transformer?

• 3:1

• 3,000

• 1,000

• 1:3

What is the voltage across the secondary coil in the transformer shown? Give your answer as a whole number in volts.

Tags

NGSS.HS-PS2-4

Use this circuit to answer the next three questions. What is the voltage across the secondary coil of the transformer? Give your answer as a whole number in volts.

What is the current in the primary coil of the transformer? Give your answer in amps to 2 decimal places.

Tags

NGSS.HS-PS2-5

What is the effective resistance seen in the primary circuit of the transformer? Give your answer as a whole number in ohms.