English

On reversing the direction of the current in a wire, the magnetic field produced by it gets ______.

Advertisements
Advertisements

Questions

On reversing the direction of the current in a wire, the magnetic field produced by it gets ______.

On reversing the direction of current in a wire, the magnetic field produced by it ______.

Options

  • gets reversed in direction

  • increases in strength

  • decreases in strength

  • remains unchanged in strength and direction

MCQ
Fill in the Blanks
Advertisements

Solution 1

On reversing the direction of the current in a wire, the magnetic field produced by it gets reversed.

shaalaa.com

Solution 2

On reversing the direction of current in a wire, the magnetic field produced by it gets reversed in direction.

shaalaa.com
  Is there an error in this question or solution?
Chapter 10: Electro-Magnetism - EXERCISE-10 (A) [Page 240]

APPEARS IN

Selina Concise Physics Part 2 [English] Class 10 ICSE
Chapter 10 Electro-Magnetism
EXERCISE-10 (A) | Q 19. (b) | Page 240
Selina Concise Physics Part 2 [English] Class 10 ICSE
Chapter 10 Electro-Magnetism
EXERCISE-10 (A) | Q 2. | Page 241

RELATED QUESTIONS

Draw a diagram showing the directions of three magnetic field lines due to a straight wire carrying current. Also show the direction of current in the wire.


How is the magnetic field due to a straight current carrying wire affected if current in wire is reversed?


In the diagram XY is a straight conductor carrying current in the direction marked by the arrow. The conductor is held vertical by passing it through a horizontal cardboard sheet.

Draw three magnetic lines of force on the board and mark the direction of magnetic field in your diagram. State two factors on which magnitude of magnetic field at a point, depends.


Describe a set up for plotting the magnetic lines of force in:  (i) A straight wire, (ii) A circular coil and (iii) A straight solenoid.


Magnetic lines of force inside current carrying solenoid are ____________.


A magnetic compass needle is placed in the plane of paper near point A as shown in Figure. In which plane should a straight current carrying conductor be placed so that it passes through A and there is no change in the deflection of the compass? Under what condition is the deflection maximum and why?


AB is a current carrying conductor in the plane of the paper as shown in Figure. What are the directions of magnetic fields produced by it at points P and Q? Given r1 > r2, where will the strength of the magnetic field be larger?


These consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:

Assertion: On freely suspending a current – carrying solenoid, it comes to rest in Geographical N-S direction.

Reason: One end of current carrying straight solenoid behaves as a North pole and the other end as a South pole, just like a bar magnet.


A compass needle is placed near a current carrying wire. State your observations for the following cases and give reasons for the same in each case -

  1. Magnitude of electric current in wire is increased.
  2. The compass needle is displaced away from the wire.

  • Assertion: A compass needle is placed near a current-carrying wire. The deflection of the compass needle decreases when the magnitude of the current in the wire is increased.
  • Reason: The strength of a magnetic field at a point near the conductor increases by increasing the current.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×