What type of magnetic material should be used to make a  temporary magnet?

1 Answer

Answer :

A material that exhibits low reluctance and high permeability,  such as iron or soft steel.

Related questions

Description : Using Weber’s molecular theory of magnetism, describe the polarity of the magnetic poles produced by stroking a magnetic material from right to left with the south pole of a magnet.

Last Answer : South pole at the right, north pole at the left.

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

Last Answer : permanent magnet

Description : What is a temporary magnet ?

Last Answer : : When a magnet is inserted into a field, it becomes a magnet .

Description : What is a temporary magnet made up of a wire rapped around a core?

Last Answer : Need answer

Description : Whats the temporary magnet?

Last Answer : a magnet that remains magnetized for only a small time interval as compared to a permanent magnet.

Description : What is the difference between a temporary and a permanent magnet?

Last Answer : A piece of steel or iron which keeps magnetic properties is called a permanent magnet. When piece of iron becomes magnetized when it is touched by magnet, which means magnetism has been induced in it. ... away from the magnet, it loses its magnetism. This type of magnet is called a temporary magnet.

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

Description : What type of switch should be used to control a circuit that requires a temporary actuation signal?

Last Answer : A momentary switch.

Description : The magnet surrounding the body of a twt serves what purpose?

Last Answer : Used to focus the electrons into a tight beam.

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. 

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.

Description : What is a temporary or permanent local deviation of the OTDR signal in the upward or downward direction called?

Last Answer : A point defect.

Description : What safety actions does the nurse need to take for a patient on oxygen therapy who is undergoing magnetic resonance imaging (MRI)? a) Ensure that no patient care equipment containing metal enters the ... oxygen tanks) that contains metal or metal parts enters the room where the MRI is located.

Last Answer : a) Ensure that no patient care equipment containing metal enters the room where the MRI is located. For patient safety the nurse must make sure no patient care equipment (e.g., portable oxygen ... literally be pulled away with such great force that they can fly like projectiles towards the magnet.

Description : The pole faces of U-shaped magnet in a moving coil galvanometer are made concave to a) decrease the strength of magnetic field b) create a non-uniform magnetic field c) make the magnetic field radial d) All of these

Last Answer : c) make the magnetic field radial

Description : 1. Draw magnetic field lines around a bar magnet. -Physics-10

Last Answer : Magnetic field lines of a bar magnet emerge from the North Pole and terminate at the South Pole as shown in the figure below.

Description : In which part of the magnet are magnetic forces strongest?

Last Answer : The magnetic field of a bar magnet is strongest at either pole of the magnet. It is equally strong at the north pole compared with the south pole. The force is weaker in the middle of the magnet and halfway between the pole and the center

Description : Why four magnetic materials are strongly attracted to the magnet?

Last Answer : This is related to the materials having magnetic domains.

Description : Are the magnetic lines force of a bar magnets strongest at the end of the magnet or in the middle?

Last Answer : Feel Free to Answer

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

Last Answer : What is the answer ?

Description : How well would a magnetic sweeper work in my quilting studio for picking up pins and needles out of carpet Is there a release mechanism or do pick them off of the magnet?

Last Answer : You might find a model that has a release system, but most you just carefully pick the items off of the sweeper. If you have a hard time finding one, many hardware stores now carry them.

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.

Description : Magnet chatter or 'pumping' occurring in a magnetic contactor can be caused by ______________. A. dirt or grease on pole faces B. mechanical interference in the contacts C. chattering contacts on the control relay D. magnetic lock out of the contacts

Last Answer : Answer: C

Description : A loud buzzing noise coming from the contacts in a magnetic controller can be caused by ____________. A. excessive current B. excessive magnet gap C. bouncing of contacts D. dirt on magnet faces

Last Answer : Answer: D

Description : A loud buzzing noise at the contacts of a magnetic controller could indicate _____________. A. weak contact spring pressure B. misalignment of the magnet faces C. excessive line current D. mechanical binding

Last Answer : Answer: B

Description : The direction of magnetic lines of force is (a) from south pole to north pole (b) from north pole to south pole (c) from one end of the magnet to another (d) none of the above

Last Answer : (b) from north pole to south pole

Description : A permeable substance is one (a) which is a good conductor (6) which is a bad conductor (c) which is a strong magnet (d) through which the magnetic lines of force can pass very easily

Last Answer : (d) through which the magnetic lines of force can pass very easily

Description : Magnetic flux linked with a coil can be changed by using an: a. Permanent magnet b.Bar magnet c. Electromagnet d. Horseshoe magnet

Last Answer : b.Bar magne

Description : In motor a permanent magnet provides: a. Electric field b. electric flux c. magnetic field d. gravitational field

Last Answer : d. gravitational field

Description : A superconductor, during its transition to the superconducting state, expels a magnetic field. After which German physicist is this phenomenon which causes a magnet to levitate above a superconductor named?

Last Answer : Walther Meissner.

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

Last Answer : ANSWER: W -- THEY GO FROM THE SOUTH-POLE TO THE NORTH-POLE OF THE M AGNET 

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 : Magnetic Field on current

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.

Description : Hard magnetic materials are used for making (A) Permanent magnets. (B) Temporary magnets. (C) Conductors. (D) Insulator.

Last Answer : (A) Permanent magnets.

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 : Cobalt is a material which is ? A. Strongly attracted by a magnet (Answer) B. Not attracted by a magnet C. not a magnet D. Weakly attracted by a magnet E. None of these

Last Answer : A. Strongly attracted by a magnet (Answer)

Description : Name the material used for :- (i) Moving coil (ii) Permanent magnet in PMMC instrument.

Last Answer : (i) Material used for Moving coil: Copper, Aluminum( some times)  (ii) Permanent magnets are made of special alloys such as :  Aluminum-Nickel-Cobalt (Alnicos)  Strontium-Iron  Neodymium-Iron-Boron  Samarium-Cobalt.

Last Answer : Preferred material for permanent magnet is: Alnico

Description : What type of equipment should you use to demagnetize your recorder's magnetic heads?

Last Answer : A hand-held degausser like the manual degaussers used for degaussing magnetic tape.

Description : What type of magnetic tape is used to record computer programs and data, and what are the additional thickness and quality standards for this type of tape?

Last Answer : digital magnetic tape is for computer programs and data. Its base material is about 50% thicker. The tape’s surface must not have blemishes or coating flaws because losing even one digital data bit could ruin the recorded computer program or data.

Description : Which of the two types of magnetic tape is used to record audio and instrumentation type signals in the VLF to 2.5MHz frequency range?

Last Answer : Analog magnetic tape.

Description : What components in an electrodynamometer-type meter movement produce the magnetic field?

Last Answer : Fixed coils.

Description : What components in an electrodynamometer-type meter movement produce the magnetic field?

Last Answer : Fixed coils.

Description : Asserarion:Bleaching action action of `SO_(2)` is temporary and by reduction. Reason: The colour of material is regained due to oxidation by air.

Last Answer : Asserarion:Bleaching action action of `SO_(2)` is temporary and by reduction. Reason: The colour of material is regained due to oxidation by air.

Description : Asserarion:Bleaching action action of `SO_(2)` is temporary and by reduction. Reason: The colour of material is regained due to oxidation by air.

Last Answer : Asserarion:Bleaching action action of `SO_(2)` is temporary and by reduction. Reason: The colour of ... -I is not correct and Statement-II is correct

Description : Pick out the correct statement. (A) Stainless steel is nothing but chromium coated steel (B) Hardening of a soft metal can be done by alloying it with another metal or non-metal (C) ... its temporary distortion under the action of applied stress (D) Rusting of iron is not electrochemical in nature

Last Answer : (B) Hardening of a soft metal can be done by alloying it with another metal or non-metal

Description : A patient comes to you with medium pain of tooth filled with Composite resin as a result of cold or hot drinks, what will your initial management be, A. Remove the restorative material and ... material and place a sedative temporary material C. Place a coat of bonding material on the old composite

Last Answer : B. Remove the restorative material and place a sedative temporary material

Description : What the three basic components make up the typical magnetic amplifier?

Last Answer : Two saturable reactors and a transformer.

Description : Your activity stores its magnetic tape in an area where the temperature is 100º F. What two types of environmental damage could occur that would make these tapes unusable?

Last Answer : Head-to-tape sticking and layer-to-layer adhesion

Description : . What primary condition must magnetic lines of force meet in order to exist?

Last Answer : Magnetic lines of force must form a continuous closed loop.

Description : When the magnetic field of the inductor is completely collapsed, where is the energy of the tank circuit stored?

Last Answer : . Capacitor.