The essential difference between an AC generator and a DC generator is that:

AC generator has slip rings while the DC generator has a commutator

AC generator has an electromagnet while a DC generator has permanent magnet

DC generator will generate a higher voltage

AC generator will generate a higher voltage

What is the role of the split ring in an electric motor?

Commutator or split ring changes the direction of current in the coil of the electric motor, after every half revolution. Note: Split ring is also known as commutator. The function of commutator rings is to reverse the direction of current flowing through the coil every time the coil just passes the vertical position during a revolution.

E M B I B E

Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Questions Based on High Order Thinking Skills (HOTS)>Q 27

EASY

10th CBSE

IMPORTANT

Earn 100

The figure given below shows the magnetic field between two magnets:

Copy the diagram and label the other poles of the magnets.

Important Questions on Magnetic Effect of Electric Current

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Questions Based on High Order Thinking Skills (HOTS)>Q 27

The figure given below shows the magnetic field between two magnets:
Question Image
Which is the weaker magnet- Magnet 1 or Magnet 2?

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Very Short Answer Type Questions>Q 1

Which effect of current can be utilised in detecting a current-carrying wire concealed in a wall?

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Very Short Answer Type Questions>Q 2

What conclusion do you get from the observation that a current-carrying wire deflects a compass needle placed near it?

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Very Short Answer Type Questions>Q 3

Name the scientist who discovered the magnetic effect of current.

(Choose from Hans Christian Oersted, James Clerk Maxwell, Michael Faraday)

MEDIUM

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Very Short Answer Type Questions>Q 4

State qualitatively the effect of inserting an iron core into a current-carrying solenoid.

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Very Short Answer Type Questions>Q 5

Name the rule for finding the direction of magnetic field produced by a straight current-carrying conductor. (Choose out of: Fleming's right hand rule, Flemings left hand rule, Maxwell's right hand thumb rule)

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Very Short Answer Type Questions>Q 6

State the form of magnetic field lines around a straight current-carrying conductor.

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Very Short Answer Type Questions>Q 7

What is the other name of Maxwell's right-hand thumb rule?
(Choose from the following: Motor rule/ Corkscrew rule /Fleming's right-hand rule).