Question
How do you magnetise a piece of magnetic material ?
✓
Answer
- A piece of magnetic material can be magnetised by keeping it inside a current-carrying solenoid.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
How many elements were known when Mendeleev started the classification of elements?
Can asexually reproducing organisms follow similar rules of inheritance? Why?
Which carbohydrate substances, on decomposition form glucose?
Find the equivalent resistance of the circuit shown in the following figure :
Also find the total current flowing in this circuit.
Also find the total current flowing in this circuit.
What is the common name of the compound CaOCL2?
Which acid is formed when milk turns into curd?
Which inorganic substances are used as raw materials by autotrophic organisms?
What is called when two populations of a species cannot reproduce with each other?
Which metals will melt, if you keep them on your palm?
As shown in the figure, three different reflected rays are obtained from three different mirrors. Carefully study the given diagrams and answer the following questions :
(1) Which one of the given mirrors is convex?
(2) Which of the mirrors will (i) reflect light as a parallel beam of light (ii) converge the parallel beam when a parallel beam of light is incident on it?
(3) Which one of the given mirrors will always produce an image equal in size to that of the object?
(4) Which mirror will form an image smaller than object size?
(5) Which mirror will form an image smaller or bigger than the object depending on the object distance?
(6) Which mirror is used (i) in a dressing table, (ii) as a rear-view mirror in vehicles (iii) by a dentist?