Magnetism Question for Class 10 | Class 10th Question

Physics Question for revision

1. State any two properties of magnetic field lines.
2. What is a magnetic field ? How can the direction of magnetic field lines at a place be determined ?
3. Explain why, two magnetic field lines do not intersect each other.
4. State and explain Maxwell’s right-hand thumb rule.
5. Draw the magnetic lines of force due to a circular wire carrying current.
6. In the straight wire A, current is flowing in the vertically downward direction whereas in wire B the current is flowing in the vertically upward direction. What is the direction of magnetic field :
(a) in wire A ?
(b) in wire B ?
Name the rule which you have used to get the answer.
7. A thick wire is hanging from a wooden table. An anticlockwise magnetic field is to be produced around the wire by passing current through this wire by using a battery. Which terminal of the battery should be connected to the :
(a) top end of wire ?
(b) bottom end of wire ?
Give reason for your choice.
8. In a statement of Fleming’s left-hand rule, what do the following represent ?
(a) direction of centre finger.
(b) direction of forefinger.
(c) direction of thumb
9. When does an electric short circuit occur?
10. What is the function of an earth wire? Why is it necessary to earth metallic appliances?
11. State the rule to determine the direction of a (i) magnetic field produced around a straight conductor-carrying current, (ii) force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it, and (iii) current induced in a coil due to its rotation in a magnetic field.
12. When is the force experienced by a current carrying conductor placed in a magnetic field largest?

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