Electromagnetic Induction

Which of the following statement is correct?

• The value of the magnetic flux is not relative to the total number of lines passing through the loop.

• When the area is perpendicular to the lines, no lines pass through the area.

• When the area is parallel to the lines, the maximum number of lines pass through the area.

• When area is perpendicular to the lines, the maximum number of lines pass through the area.

DC Generator is the electrical energy generated by power plants transmitted over long distances at very high voltage.

• True

• False

Tags

NGSS.HS-PS3-3

Transformer is the another name for Faraday's ring.

• True

• False

Secondary coil is connected to the source of an alternating current.

• True

• False

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Describe the direction of current in an AC generator?

• The electric current reverses direction regularly.

• The electric current flows is permanent. 

• The flow of electric current is irreversible. 

• The electric current flows in one direction. 

The process of inducing an electric current with a magnetic field known as electromagnetic induction.

• True

• False

Tags

NGSS.HS-PS2-5

When the voltage in the secondary coil decreases, it is called step-down transformer.

• True

• False

Tags

NGSS.HS-PS3-5

Which law states that the induced e.m.f. and the current constantly oppose the source that produces them?

• Lenz's

• Charle's

• Faraday's

• Coulomb's

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Generators are used in power plants to convert other forms of energy into electrical energy.

• True

• False

Tags

NGSS.HS-PS3-3

What is the SI unit for current?

• Ampere

• Ohm

• Watts

• Volt