Transformer

If a transformer reduces voltage, it is called a....................... transformer.

• step left

• step right

• step up

• step down

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

Transformers only work with ___________ current.

• alternating

• direct

Tags

NGSS.HS-PS2-5

A transformer has 15 turns on its primary coil and 30 turns on its secondary coil. This is a....

• step-up transformer

• step-down transformer

Tags

NGSS.HS-PS3-3

NGSS.HS-PS3-5

A step-up transformer has an input power of 75 W. What is the output power?

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

A step-down transformer has an input voltage of 50 V. The output voltage will be...

• less than 50 V

• 50 V

• greater than 50 V

A step-down transformer has an input current of 50 A. The output voltage will be...

• less than 50 A

• 50 A

• greater than 50 A

If a transformer increases voltage, it is called a ......... transformer.

• step right

• step left

• step up

• step down

What is the material used for construction of transformer core?

• Aluminium

• Copper

• Iron

• Wood

A transformer is a passive electrical device that transfers _________________ between 2 or more circuits.

• electrical energy

• current

• voltage

• electromagnetic energy

Tags

NGSS.HS-PS3-5

The transformer is a device used to .......... the value of a voltage.

• steady

• resist

• change

• anchor

Tags

NGSS.HS-PS3-3