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प्रश्न
Draw diagram showing the arrangement of the lines of force for a piece of soft iron laid in line with the magnetic field.
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उत्तर
Arrangement of lines of force for a piece of soft iron laid in line with the magnetic field:
AB is a soft iron rod whose end A behaves as south pole and end B behaves a north pole when soft iron rod is placed in a line with magnetic field.
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संबंधित प्रश्न
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
The strength of the magnetic field between the poles of an electromagnet would be unchanged if ______.
Explain what you understand by magnetic induction. What role does it play in attraction of a piece of iron by a magnet?
A battery can supply a charge of 25 × 104 C. If the current is drawn from battery at the rate of 2.5 A, calculate the time in which battery will discharge completely.
Define the isoclinic line.
______ is the number of magnetic field lines passing through a given area.
When the conductor is perpendicular to the magnetic field, the force will be the ______, When it is parallel to the magnetic field, the force will be ______.
A student fixes a white sheet of paper on a drawing board. He places a bar magnet in the centre and sprinkles some iron filings uniformly around the bar magnet. Then he taps gently and observes that iron filings arrange themselves in a certain pattern.
- Why do iron filings arrange themselves in a particular pattern?
- Which physical quantity is indicated by the pattern of field lines around the bar magnet?
- State any two properties of magnetic field lines.
Name the poles P, Q, Rand S of the magnets in the following figures 'a' and 'b':
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| Figure 'a' | Figure 'b' |
State the inference drawn about the direction of the magnetic field lines on the basis of the following diagrams.
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| Figure 'a' | Figure 'b' |
