EASY
10th CBSE
IMPORTANT
Earn 100

What is the purpose of soft iron core used in making electromagnet?

Important Questions on Magnetic Effects of Electric Current

EASY
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 4 - Magnetic Effects of Electric Current>EXERCISES>Q 4
What is meant by magnetic field?
EASY
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 4 - Magnetic Effects of Electric Current>EXERCISES>Q 4
How is the direction of magnetic field at a point determined?
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 4 - Magnetic Effects of Electric Current>EXERCISES>Q 4
Describe an activity to demonstrate the direction of magnetic field generated around a current carrying conductor.
HARD
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 4 - Magnetic Effects of Electric Current>EXERCISES>Q 4
State Fleming's Right Hand rule. With a labelled diagram, describe the working of AC electric generator.
EASY
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 4 - Magnetic Effects of Electric Current>EXERCISES>Q 5
It is established that electric current through a metallic conductor produces a magnetic field around it. Is there a similar magnetic field produced around a thin beam of moving alpha particles? Give reason also.
EASY
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 4 - Magnetic Effects of Electric Current>EXERCISES>Q 5
It is established that electric current through a metallic conductor produces a magnetic field around it. Is there a similar magnetic field produced around a thin beam of moving neutrons? Give reason also.
EASY
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 4 - Magnetic Effects of Electric Current>EXERCISES>Q 5
Commutator changes the direction of current in the coil in a motor. How does it make the coil rotate in a single direction?
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 4 - Magnetic Effects of Electric Current>EXERCISES>Q 5
If a circular loop of current carrying wire is lying on table, such that current passes through it anti-clockwise, then where is the N-pole of resultant magnet formed?