Advertisements
Advertisements
Question
Describe how an electromagnet could be used to separate copper from iron in a scrap yard.
Solution
In this process of separation, a large electromagnet is attached to a crane and moved over the scrap yard. It picks up the iron objects from the mixture and carries them to other location. Further, iron objects is dropped by switching off the current of the electromagnet coil. In this way, we will be left with copper objects in the scrap yard.
APPEARS IN
RELATED QUESTIONS
Why should the wires carrying electricity not be touched barefooted?
What precaution should be taken to avoid the overloading of domestic electric circuits?
What is the function of an earth wire?
Draw a circuit diagram to show how a soft iron piece can be transformed into an electromagnet.
Give the symbol of an electric fuse used in circuit diagrams.
Along with live wire and neutral wire, a third wire is also used in domestic electric wiring. What name is given to this third wire?
In which wire in a A.C. housing circuit is the switch introduced to operate the lights?
How are the electrical appliances connected in a house circuit: in series or in parallel? Give reason.
A fuse should always be placed in the ____________.
Overloading is due to
