Electromagnetic Induction

When a conductor is moved to cut through the magnetic flux, an _______________ is produced.

• induced current

• electromotive force

• electromagnetic induction

• internal resistance

Tags

NGSS.HS-PS2-5

The production of electric current by a changing magnetic field is called ____________________________________.

• induced current

• electromotive force

• electromagnetic induction

• internal resistance

Tags

NGSS.HS-PS2-5

___________________rule can be used to determine the direction of the ___________ induced current produced.

• Fleming's Left Hand Rule

• Fleming's Right Hand Rule

• Right Hand Grip Rule

Tags

NGSS.HS-PS2-5

In Fleming's Right Hand Rule, First finger and center finger represent

• current, magnetic field

• magnetic field, current

• force, current

• magnetic field, force

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

____________law states that the direction of the induced current is such that it always _______ ___ the change producing it.

• Lenz's Law, oppose

• Faraday's Law, oppose

• Lez's Law, follow

• Faraday's Law, follow

Tags

NGSS.HS-PS2-5

Faraday’s Law states that the magnitude of the induced e.m.f. is _________________ to the rate of change of magnetic flux linkage with the solenoid.

• equal

• inversely proportional

• directly proportional

The d.c generator and a.c generator make use of electromagnetic induction to produce _______________________

• force

• electricity

• energy

• power

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which device uses slip rings?

• a cathode-ray tube

• a d.c. generator

• an a.c. generator

• a solenoid

Which of the following increases frequency of AC?

• increasing number of turns on the coil

• using a stronger magnet

• rotating the coil faster

• increase area of the coil

No EMF is induced when?

• When the wire is not moving

• When the wire is parallel to magnetic field direction

• When no lines are cut by the wire

• all of the above

Tags

NGSS.HS-PS2-5