Magnetism Exe-10B Very Short Ans Concise Physics ICSE Class 9 Selina Publishers

Magnetism Exe-10B Very Short Ans Concise Physics ICSE Class 9 Selina Publishers Solutions.  This article is the answer of Very Short Questions Type Exe-10B Electromagnet and its Uses. Visit official Website CISCE for detail information about ICSE Board Class-9 Physics.

Magnetism Exe-10B Very Short Ans Concise Physics ICSE Class 9 Selina Publishers

Board ICSE
Class 9
Subject Physics
Writer / Publication Concise selina Publishers
Chapter-10 Magnetism
Exe-10B Electromagnet and its Uses
Topics Solution of Exe-10B Very Short Answer 
Academic Session 2024-2025

Electromagnet and its Uses

Magnetism Exe-10B Very Short Ans Concise Physics ICSE Class 9 Selina Publishers Solutions

VERY SHORT ANSWER TYPE:

Question-1: Is an electro magnet used as a permanent magnet?

Answer- Electromagnets behave as a magnet only when electric current flows through them. So, they are temporary magnets.

Question-2: Name the material used for preparing an electro magnet.

Answer- The material used for preparing an electromagnet is soft iron.

Question-3: A coil of insulated copper wire is wound around a piece of soft iron and current is passed in the coil from a battery. What name is given to the device so obtained? Give one use of the device mentioned by you.

Answer-Electromagnet, electric relay.

Question-4: Name one device that uses an electromagnet.

Answer-Electric bell.

Question-5: Why is soft iron used as the core of the electro magnet in an electric bell?

Answer-The soft iron bar acquires the magnetic properties only when an electric current flows through the solenoid and loses the magnetic properties as soon as the current is switched off. That’s why soft iron is used as the core of the electromagnet in an electric bell.

—:  end of Magnetism Exe-10B Very Short Ans of Electromagnet and its Uses Concise Physics ICSE Class 9 Selina Publishers : –

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