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

Who was the first to show the process of making a magnet with electricity ?
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1 Answer

Answer :

In 1820 , Arstad first showed the subject.
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What kind of magnet is produced when electricity is used?

Description : What kind of magnet is produced when electricity is used?

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

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

Last Answer : Answer: John canton.

What is the material for making artificial magnet ?

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 .

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

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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).

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

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)

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

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

Last Answer : a) Iron

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

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The most effective and quickest may of making a magnet from soft iron is by

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

When to show a magnet made of electric current ?

Description : When to show a magnet made of electric current ?

Last Answer : In the 1820s , Orested made a magnet with an electric current .

Define magnetic lines of force. Also draw and show magnetic lines of force of a bar type magnet.

Description : Define magnetic lines of force. Also draw and show magnetic lines of force of a bar type magnet.

Last Answer : Magnetic Lines of force- These are the imaginary lines (having no physical existence) introduced by Faraday for the pictorial representation of the distribution of a magnetic field.  OR  A line of ... that the tangent at any point gives direction of the resultant force at that point. 

Define magnetic lines of force. Show the magnetic lines of force for bar type magnet.

Description : Define magnetic lines of force. Show the magnetic lines of force for bar type magnet.

Last Answer : Magnetic linens of force is the imaginary lines for magnetic field of magnet around it. These magnetic lines of forces are introduced by Michael Faraday. The direction of lines of force is from N-pole to S-pole. The figure shows lines of force for bar type magnet.

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

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.

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

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.

What is a magnet ?

Description : What is a magnet ?

Last Answer : An object that creates a magnetic field , which then exerts a force on another magnet or magnetic substance, is called a magnet. In the general sense, objects that attract iron , nickel, etc., are considered as magnets.

Which is the most permanent strong magnet ?

Description : Which is the most permanent strong magnet ?

Last Answer : The most durable strong magnet is nickel.

Who Discovered the Magnet Theory ?

Description : Who Discovered the Magnet Theory ?

Last Answer : Dr. discovered the theory of magnetism. Gilbert.

What is the chemical signal of magnet ?

Description : What is the chemical signal of magnet ?

Last Answer : The chemical signal of the magnet is Fe3O4

What does a permanent magnet repel?

Description : What does a permanent magnet repel?

Last Answer : – Diamagnetic substances only

The method of magnetization is: (1) hammering a magnet (2) heating a magnet (3) passing direct current through it (4) passing alternating current through it

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Last Answer : (1) hammering a magnet Explanation: Hammering a rod will either allow it to become slightly magnetic inlaid along a magnetic field (i.e.North - South) or demagnetize it if laid across the field lines (i.e. East-West). A current passing through a coil will produce a magnetic field.

The south pole of the earth’s magnet is near the geographical ________. (1) south (2) east (3) west (4) north

Description : The south pole of the earth’s magnet is near the geographical ________. (1) south (2) east (3) west (4) north

Last Answer : (4) north Explanation: The South Pole of the Earth's magnet is in the geographical North because it attracts the North Pole of the suspended magnet and vice versa. Thus, there is a magnetic S-pole near the geographical North, and a magnetic Npole near the geographical South

Flemings "Left hand Rule" is associated with the effect of – (1) Electric field on current (2) Magnetic field on magnet (3) Electric field on magnet (4) Magnetic Field on current

Description : Flemings "Left hand Rule" is associated with the effect of – (1) Electric field on current (2) Magnetic field on magnet (3) Electric field on magnet (4) Magnetic Field on current

Last Answer : (4) Magnetic Field on current Explanation: Whenever, a current carrying conductor comes under a magnetic field, there will be force acting on the conductor and on the other hand, if a conductor ... conductor. In both of the phenomenon, there is a relation between magnetic field, current and force.

For which among the following house appliances, magnet is an essential part? (1) Calling bell (2) Fan (3) Washing machine (4) All of the above

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Last Answer : (4) All of the above

When a bar magnet is cut into two equal halves, the pole strength of each piece (1) becomes double (2) becomes half (3) becomes zero (4) remains the same

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Last Answer : (4) remains the same Explanation: The poles remains same whether the magnet is cut into two equal half or more and also pole strength remains same but magnetic moment reduces due to decrease in the length of ... is called north pole (N-poled of the magnet and the other end the south pole (S-pole).

Tape recorder should not be kept near one of the following things – (1) Clock (2) Magnet (3) Electrical switchboard (4) Radio

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Last Answer : (2) Magnet Explanation: The cassette tape contains a magnetic strip wound around two spools. Tiny magnetic particles are randomly scattered throughout the tape. A tape recorder should not be kept ... material to be pushed and pulled out of place. Rearranging the magnetic particles erases the sound.

Magnetic field can be produced by using A. permanent magnet B. electric current C. temporary magnet D. both A and B

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Last Answer : permanent magnet

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By accelerating the magnet inside the coil, the current in it A. increases B. decreases C. remains constant D. reverses

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Last Answer : increases

A proton and an alpha particle pass through the gap of a strong magnet. If both particles have the same initial velocity, how many times greater will the defection of the proton be relative to the deflection of the alpha particle? Will it be: w) the same x) 2 times y) 4 times z) 8 times

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The coating on the plastic tape you use in your cassette players is w) diamagnetic x) paramagnetic y) ferromagnetic z) a permanent magnet

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Magnetic lines of force have all but one of the following characteristics. The one that they DO NOT have is: w) they go from the South-pole to the North-pole of a magnet outside of the magnet x) they are most concentrated at the poles of a magnet y) they pass through copper z) they never cross one another

Description : Magnetic lines of force have all but one of the following characteristics. The one that they DO NOT have is: w) they go from the South-pole to the North-pole of a magnet outside of the magnet ... most concentrated at the poles of a magnet y) they pass through copper z) they never cross one another

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In an electromagnetic wave, the ratio of the magnitudes of the electric field to the magnet field is equal to what?

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Flemings “Left hand Rule” is associated with the effect of (1) Electric field on current (2) Magnetic field on magnet (3) Electric field on magnet (4) Magnetic Field on current

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The method of magnetisation is: (1) hammering a magnet (2) heating a magnet (3) passing direct current through it (4) passing alternating current through it

Description : The method of magnetisation is: (1) hammering a magnet (2) heating a magnet (3) passing direct current through it (4) passing alternating current through it

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Tape recorder should not be kept near one of the following things : (1) Clock (2) Magnet (3) Electrical switchboard (4) Radio

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When a bar magnet is cut into two equal halves, the pole strength of each piece – (1) becomes double (2) becomes half (3) becomes zero (4) remains the same

Description : When a bar magnet is cut into two equal halves, the pole strength of each piece – (1) becomes double (2) becomes half (3) becomes zero (4) remains the same

Last Answer : remains the same

Which type of stone in making piezo electricity?

Description : Which type of stone in making piezo electricity?

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List at least two examples that show how static electricity can be generated.

Description : List at least two examples that show how static electricity can be generated.

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Could the radiation on Mars be used to generate electricity?

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Is there a positive charge EMP? Can electricity be contained?

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Does a source of electricity ever run out of electrons? -Physics

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Last Answer : We can roughly classify all electrical systems into two categories: static electricity systems and circuit electricity systems. Note that all electrical effects are actually part of one unified set of physical laws. ... go away. They are still there as a natural part of the materials in the circuit.

Can electronic devices charge themselves without being plugged into an electricity source? -Physics

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Last Answer : Yes, electronic devices can charge their batteries through various methods without being plugged into a source of electricity. What all the different methods have in common is that they absorb energy that is ... several commercial products, such as Google's Nexus 4 phone and Nokia's Lumia 920 phone.

What energy does an electric cell use to generate electricity ?

Description : What energy does an electric cell use to generate electricity ?

Last Answer : Electric cells generate electricity using chemical energy.

Which one needs electricity to run ?

Description : Which one needs electricity to run ?

Last Answer : Electric power is required to operate an electrical device.

What is the basic unit of electricity ?

Description : What is the basic unit of electricity ?

Last Answer : The basic unit of power.

What is the basic amount of electricity ?

Description : What is the basic amount of electricity ?

Last Answer : Basic amount of electric current.

What is the reaction of a fuel cell to generate electricity ?

Description : What is the reaction of a fuel cell to generate electricity ?

Last Answer : Answer : Electricity is generated from fuel by the redox reaction that takes place between the two electrodes of the fuel cell.

What is electricity ?

Description : What is electricity ?

Last Answer : The force felt by a single positive charge at a point in an electric field is called the electric force of that point.

What is static electricity ?

Description : What is static electricity ?

Last Answer : The electricity which is generated by friction and remains at the place of origin is called static electricity.