1 Answer

Answer :

The most effective and quickest may of making a magnet from soft iron is by placing it inside a coil carrying current.

Related questions

Description : Why is magnet always made of soft iron?

Last Answer : Ans: Magnet is always made of soft iron because ‘magnetisation’ and ‘demagnetisation’ both are possible in soft iron.

Description : The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields (a) meter is surrounded by strong magnetic fields (b) a soft ... is used (c) a plastic shielding is provided (d) a shielding of anon-magnetic material is used

Last Answer : (b) a soft iron shielding is used

Last Answer : Magnetism of a magnet can be destroyed by heating, hammering, by inductive action of another magnet.

Last Answer : The bar magnet has the dipole moment.

Description : A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be

Last Answer : A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be M/2.

Last Answer : A permanent magnet attracts some substances and repels others.

Last Answer : When a magnet is in motion relative to a coil the induced e.m.f. does not depend upon resistance of the coil.

Description : The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields

Last Answer : The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields a soft iron shielding is used.

Description : The most suitable metal for making permanent magnet is a) Iron b) Steel c) Silver d) Copper

Last Answer : a) Iron

Description : Which of the following would be most suitable for making an electromagnet? (a) Copper (b) Tungsten (c) Soft iron (d) Steel

Last Answer : Ans:(c)

Last Answer : The materials having low retentivity are suitable for making temporary magnets.

Description : ______ is most commonly used for making magnetic recording tape.

Last Answer : Ferric oxide is most commonly used for making magnetic recording tape.

Last Answer : The initial permeability of an iron rod is the permeability almost in non-magnetised state.

Last Answer : The magnetism left in the iron after exciting field has been removed is known as residual magnetism.

Last Answer :  When an iron piece is placed in a magnetic field the magnetic lines of force will bend away from their usual paths in order to pass through the piece.

Last Answer : Addition of 0.3 to 4.5% silicon to iron increases the electrical resistivity of iron.

Description : Who in 1749 developed a method for making an artificial magnet?

Last Answer : Answer: John canton.

Description : What is the material for making artificial magnet ?

Last Answer : Synthetic magnets are made by supplying electric current to the cast iron. That means cast iron , wire and current are needed to make artificial magnets .

Description : Who was the first to show the process of making a magnet with electricity ?

Last Answer : In 1820 , Arstad first showed the subject.

Description : Which of the following alloy is used in making magnet? (1) Duralumin (2) Stainless steel (3) Elniko (4) Magnalium

Last Answer : (3) Elniko Explanation: A magnetic alloy is a combination of various metals from the periodic table that contains at least one of the three main magnetic elements: iron (Fe), nickel (Ni), and cobalt (Co).

Description : The alloy of aluminium used for making magnet is-----? A. Duralumin B. Y-Alloy C. Alnico (Answer) D. Aluminium bronze

Last Answer : C. Alnico (Answer)

Description : Which of the following alloy is used in making magnet ? (1) Duralumin (2) Stainless steel (3) Elniko (4) Magnalium

Last Answer : Elniko

Description : When a piece of iron is rubbed with a magnet it acquires magnetism ' What kind of change is this and why ?

Last Answer : When a piece of iron is rubbed by a magnet, it acquires magnetism ' is a physical or positional change. This is because when rubbed by a magnet, no other substance is formed from iron. Again , when a piece of magnetized iron is heated, it loses its magnetism and is converted into ordinary iron.

Description : Which energy is converted into which energy when iron is converted to magnet ?

Last Answer : When iron is converted to magnet, magnetic energy is converted into heat energy.

Description : Which magnet is used in a crane to move heavy iron beams ?

Last Answer : : Strong electromagnets are used in cranes to move heavy iron beams.

Description : Which of the following iron and steel is used to make a permanent magnet ?

Last Answer : Steel is used between cast iron and steel to make permanent magnets.

Description : Why a piece of iron can be turned into magnet but not a copper piece?

Last Answer : Iron has the property of being ferromagnetic, most othermaterials don't.The difference is that in iron, groups of adjacentatoms have a tendency to form magnetic domains.

Description : How can iron fillings be used to map the magnetic field of a bar magnet?

Last Answer : What is the answer ?

Description : What part of a magnet would pick up most iron filling?

Last Answer : The one that the field strength is stronger

Description : When a piece of iron rod is brought near a permanent magnet for a while it becomes magnitised by?

Last Answer : Need answer

Description : Can a magnet attract to a demagnetized iron rod?

Last Answer : Yes. In this case, the magnet will induce magnetism in the iron,which is originally unmagnetized. Once the magnet is removed, theiron may return to an unmagnetized state; unless the magnetic fieldnear the piece of iron is very strong.

Description : If you are given some iron fillings and a magnet describe how you would find the poles of the magnet?

Last Answer : If possible cover the magnet with a sheet of paper and gentlysprinkle the iron filings over the sheet ot paper, they will stickin a pattern following the magnetic "lines of flux" which will ... . Without the paper thefilings will usually become tightly stuck to the magnet, making ithard to clean.

Description : Permanent magnet is normally made of- (a) Aluminum (b) Wrought iron (c) Cast iron (d) Alnico alloys

Last Answer : Ans: C

Description : Which of the following electric meter movements uses a stationary permanent magnet and movable coil? A. D'Arsonval B. Electrodynamometer C. Moving iron-vane D. Inclined coil iron-vane

Last Answer : Answer: A

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Last Answer : He said, "Hey, guys! Listen to this," lifted his leg and then proceeded to fill his shorts

Description : What are the quickest ways to dry clothes at night with no dryer?

Last Answer : Just leave them hanging, and if they’re still damp in the morning you can use a hairdryer (assuming you have one) I definitely wouldn’t put them in the microwave.

Description : In your experience, does it seem like the people with the least are the quickest to give and help others?

Last Answer : Most people in the world are indeed awesome. And eager to help, particularly if they can help directly/face to face. It’s too bad that the occasional exception to this rule winds up being regarded as typical when it is in truth the other way around.

Description : What's the quickest, easiest way you have used to remove the silk from corn on the cob?

Last Answer : I use an old toothbrush to get it off.

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Last Answer : Facebook. I’m pretty sure that all counties have a buy/sell/trade page like this one.

Description : Missing router password; best or quickest solution? HELP !

Last Answer : Hold the reset button in for more than 10 seconds. Connect directly to it and enter http://192.168.1.254 into the browser. You can set it up again now…

Description : What is the quickest way to get rid of duplicate music files on my hard drive?

Last Answer : If you put them all into itunes then it has a remove duplicates option, there is also plenty of software available just by googling “remove duplicate music files”, it’s up to you to find one you like though, some only let you remove so many for free, others do all.

Description : The best/quickest way to learn sign language?

Last Answer : Maybe with an app for your smartphone (if you own one)? > > Android > > > iPhone >

Description : Quickest ways to get the smell of cigarette smoke out of a house?

Last Answer : Open all the windows.

Description : What is the quickest way to earn a teaching credential if you already have a bachelors degree?

Last Answer : Here is the CA government website on getting credentialed as a teacher in California.

Description : What's the quickest way to break down alcohol levels in my blood?

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Description : What is the quickest way to heal a sprained ankle?

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Description : Quickest way to upload videos online?

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