- Trending Categories
- Data Structure
- Operating System
- MS Excel
- C Programming
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Why does a magnetic compass needle pointing North and South in the absence of a nearby magnet get deflected when a bar magnet or a current carrying loop is brought near it. Describe some salient features of magnetic lines of field concept.
A compass needle gets deflected when brought near a bar magnet because the needle of a compass is a magnet, which experiences a magnetic field exerted by the bar magnet.
$(i)$. The magnetic field lines represent the magnetic field around the magnetic substance or current-carrying conductor with direction and magnitude.
$(ii)$. The magnetic field lines emerge from the North pole and merge at the South pole in a closed curve.
$(iii)$. The strong magnetic field indicates that the degree of closeness of the field lines is high.
$(iv)$. Two magnetic field lines can never intersect each other.
$(v)$. A uniform magnetic field in a region is indicated by the parallel and equidistant field lines in a given region whereas converging or diverging field lines indicate the non-uniform magnetic field.
- Related Articles
- Why does a compass needle get deflected when brought near a bar magnet?
- Draw magnetic field lines around a bar magnet.
- (a) Define magnetic field lines. Describe an activity to draw a magnetic field line outside a bar magnet from one pole to another pole.(b) Explain why a freely suspended magnet always points in the north-south direction.
- What is the shape of a current-carrying conductor whose magnetic field pattern resembles that of a bar magnet?
- What is a solenoid? Draw the pattern of magnetic field lines of (i) a current-carrying solenoid and (ii) a bar magnet. List two distinguishing features between the two fields.
- When the current is switched on through a wire, a compass needle kept nearby gets deflected from its north-south position. Explain.
- In a bar magnet, magnetic attraction is ......... near its end.
- How 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.
- Draw a diagram to show the magnetic field lines around a bar magnet.
- In the kicking wire experiment, the current carrying wire gets deflected due to the magnetic field of the horse shoe magnet.\nIs the deflection in the wire due to the fact that a current carrying conductor behaves as a bar magnet when current is passed through it ?
- The shape of the earth’s magnetic field resembles that of an imaginary:(a) U-shaped magnet (b) Straight conductor carrying current (c)Current-carrying circular coil (d) Bar magnet
- How does a magnet create a magnetic field ?
- Which of the following statements is incorrect regarding magnetic field lines?(a) The direction of magnetic field at a point is taken to be the direction in which the north pole of a magnetic compass needle points(b)Magnetic field lines are closed curves(c)If magnetic field lines are parallel and equidistant, they represent zero field strength(d)Relative strength of magnetic field is shown by the degree of closeness of the field lines
- Why is a series arrangement not used for connecting domestic electrical appliances in a circuit?Draw a diagram to show the magnetic field lines around a bar magnet. List any two properties of magnetic field lines.
- State the form of magnetic field lines around a straight current-carrying conductor.