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प्रश्न
What are magnetic field lines?
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उत्तर
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संबंधित प्रश्न
What is a magnetic field?
The magnetic field lines produced by a bar magnet:
(a) originate from the south pole and end at its north pole
(b) originate from the north pole and end at its east pole
(c) originate from the north pole and end at its south pole
(d) originate from the south pole and end at its west pole
In following figure, draw at least two magnetic field lines between the two magnets.
(b) 
In a uniform magnetic field, the field lines are:
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.
A dry cell can supply a charge of 800 C. If continuous current of 8.0 mA is drawn, calculate the time in which cells will discharge completely.
Select the correct option:
Nickel is a:
Repulsion is a surer test of magnetic condition of a body than attraction. Explain.
State whether true or false. If false, correct the statement.
Magnetic field lines always repel each other and do not intersect.
Magnetic lines of force never ______ each other.
