List the properties of magnetic field lines. 

Important Questions on Magnetic Effects of Electric Current

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4A>Q 3

Why does a solenoid behave like a magnet? Can you determine the north and south poles of a current carrying solenoid with the help of a bar magnet? Explain.

HARD

10th CBSE

IMPORTANT

Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4A>Q 4

Describe Oersted's experiment to show that a current carrying conductor produces a magnetic field around itself.

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4A>Q 5

How will you plot the magnetic lines of force around a straight conductor carrying current?

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4A>Q 6

Give the properties of the magnetic field around a straight conductor carrying current.

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4A>Q 7

How does the magnetic field set up by a solenoid change, when : (i) the number of turns of the coil are increased? (ii) the strength of the current is increased? (iii) a soft iron core is inserted within the solenoid?

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4A>Q 8

A straight conductor passes vertically downward through a cardboard on which grains of fine iron powder are sprinkled. What will you observe when : (i) a weak current is passed through the conductor? (ii) a strong current is passed through the conductor?

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4A>Q 9

State the effect on the magnetic strength of a solenoid, when (a) a soft iron core is inserted in it, (b) the soft iron core is laminated.

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4A>Q 10

How can it be shown with the help of an activity that a magnetic field is produced around a current carrying wire?