How do magnets and copper wire make electricity?

How do magnets and copper wire make electricity?
by

1 Answer

Answer :

According  to  Faradays  law , a changing  magnetic  field  on  a  conductor  induses  current  in  the  conductor  through   mutual  induction.

by

Related questions

The ground wire should not be smaller than No ______ copper.

Last Answer : The ground wire should not be smaller than No 10 copper.

How is electricity passed through a wire?

Description : How is electricity passed through a wire?

Last Answer : A  wire contains  mobile  electrons  as  majority  charge  carriers  and  holes  as minority  charge carriers when  an emf  or   potential  diffrence is  provided , electrons  flow  in opposite  direction  with  holes(convection current  flow)

How To Make Sea Shell Magnets

Description : How To Make Sea Shell Magnets

Last Answer : Materials: Seashells Regular disc magnets Glue gun Paint Instructions: Any size or type of seashell will work. Go to a craft store and buy regular disc magnets. Then, hot glue them onto the back of ... way to use all those sea shells you found on the beach, but didn't know what to do with.

Why don't magnets lose their magnetism?

Description : Why don't magnets lose their magnetism?

Last Answer : They can if you strike them. Unless it is a permanent magnet.

Hard steel is suitable for making permanent magnets because?

Description : Hard steel is suitable for making permanent magnets because?

Last Answer : Hard steel is suitable for making permanent magnets because it has good residual magnetism.

Those materials are well suited for making permanent magnets which have _____ retentivity and _______ coercivity.

Description : Those materials are well suited for making permanent magnets which have _____ retentivity and _______ coercivity.

Last Answer : Those materials are well suited for making permanent magnets which have high retentivity and high coercivity.

Permanent magnets are normally made of?

Description : Permanent magnets are normally made of?

Last Answer : Permanent magnets are normally made of alnico alloys.

Is electricity generated in AC or DC?

Description : Is electricity generated in AC or DC?

Last Answer : Electricity   is  generated  in  AC.

What do we use to generate electricity?

Description : What do we use to generate electricity?

Last Answer : Use wind turbines.  In a windy seashore we set up some wind turbines.  But when the place is not windy we got no electricity.

How to Solder Copper Pipe

Description : How to Solder Copper Pipe

Last Answer : How to Solder Copper Pipe Copper tubing or pipes work well for air, water or even refrigerants. If you want to join them together with sweat joints , you'll have to learn how to solder them ... effect on their efficiency. Follow these steps and be able to do copper pipe soldering all by yourself.

How to Patina Copper

Description : How to Patina Copper

Last Answer : How to Patina Copper Patina is that tarnish coating that develops outside metal, like copper, over time. Not only does it add an attractive appearance to copper, but it also provides protection to harsh ... egg. Once you've reached the desired patina coat, rinse the copper pieces in lukewarm water.

How to Clean Copper

Description : How to Clean Copper

Last Answer : How to Clean Copper Whether it's a coin, a pan, or a trophy, copper has one of the nicest-looking finishes among common metals. Copper can retain its finish for quite a while, although it is ... properly. With these tips, you'll never have to worry about your copper items losing their shine again.

Select insulating materials for following parts : (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.

Description : Select insulating materials for following parts : (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.

Last Answer : Parts Insulating Materials  Insulation between heating element and base plate of electric iron. Mica Insulation used over copper or aluminium conductor used for making coils.  ... Transformer bushings Porcelain  Insulation between transmission line and pole. Porcelain

Why is aluminium used instead of copper for overhead cables?

Description : Why is aluminium used instead of copper for overhead cables?

Last Answer : Because copper reacts with atmosphere variation and it's cost High as compared to aluminium and aluminium is good property and less cost so aluminium is used

Which is a semiconductor: copper, silicon, or neon?

Description : Which is a semiconductor: copper, silicon, or neon?

Last Answer : Copper is a metal. Silicon is a semiconductor. Neon is inert gas.

Compare copper and aluminium.

Description : Compare copper and aluminium.

Last Answer : Copper Aluminium Resistivity is less Resistivity is more More weight Low weight Mechanically strong Mechanically weaker Specific Gravity high Specific Gravity Low ... Tensile strength is half of that of copper Used for winding Used for overhead lines

A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The

Description : A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The proportion of full load at maximum efficiency is

Last Answer : A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The proportion of full load at maximum efficiency is 0.707

At full -load of a transformer, the iron loss and copper loss are 3000 W and 4000 W respectively. Then total

Description : At full -load of a transformer, the iron loss and copper loss are 3000 W and 4000 W respectively. Then total loss at maximum efficiency is :  (A) 7000 W (B) 6000 W (C) 8000 W (D) 4000 W

Last Answer : At full -load of a transformer, the iron loss and copper loss are 3000 W and 4000 W respectively. Then total loss at maximum efficiency is : 6000 W

Two copper conductors have equal length. The cross-sectional area of one conductor is four times that of the other...

Description : Two copper conductors have equal length. The cross-sectional area of one conductor is four times that of the other. If the conductor having smaller cross-sectional area has a resistance of 40 ohms the resistance of other conductor will be?

Last Answer : Two copper conductors have equal length. The cross-sectional area of one conductor is four times that of the other. If the conductor having smaller cross-sectional area has a resistance of 40 ohms the resistance of other conductor will be 10 ohms.

Copper brushes in D.C. machine are used?

Last Answer : Copper brushes in D.C. machine are used where low voltage and high currents are involved.

Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is?

Description : Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is?

Last Answer : Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is approximately equal to 1.

explain skin effect in copper interconnects. what are the various ways of reducing this effect?

Description : explain skin effect in copper interconnects. what are the various ways of reducing this effect?

Last Answer : Skin effect generally observed in ac conductor in transmission network, in skin the current flowing through outer layer of conductor is more than iner area of conductor thus we can say the ... for reducing this effect we can use boundel conductor or used hollow conductor for power transmission

10 Ways to Make Sure You Stay Disorganized

Description : 10 Ways to Make Sure You Stay Disorganized

Last Answer : We talk a lot about getting and staying organized. It's something of an obsession with some people: they have to know where everything is at all times and be able to find what they need at a ... rush to do everything all at once. When you realize how utterly hopeless it is, commence freaking out.

How to Make the World a Better Place

Description : How to Make the World a Better Place

Last Answer : How to Make the World a Better Place Everything wrong with the world can always be changed by doing something right. Many of us complain about the sad state of the world, but end up doing ... others, and a person who helps make the world better for everyone even in the smallest ways possible.

How to Make Plexiglas Windows for Deer Stands

Description : How to Make Plexiglas Windows for Deer Stands

Last Answer : How to Make Plexiglas Windows for Deer Stands Introduction Deer stands are used by seasoned or amateur hunters to hunt deer and other wildlife in a safe, protected, and comfortable environment. These ... Use aluminum frames in place of wooden frames as they are weather resistant and last very long.

How to Make a Paper Airplane ?

Description : How to Make a Paper Airplane ?

Last Answer : A tip for your trip This plane should be thrown overarm and horizontally. If the plane has been made correctly, it should fly straight and reasonably far. It is not the easiest job in the world to fold the plane so poorly that it crashes at the instance thrown.

Phase margin is the amount of angle to make the system

Description : Phase margin is the amount of angle to make the system  (1) Oscillatory (2) Stable (3) Unstable (4) Exponential

Last Answer : Phase margin is the amount of angle to make the system Unstable 

How to make power bank from laptop battery cells?

Description : How to make power bank from laptop battery cells?

Last Answer : You can make the power bank from laptop battery cells. Things you need to make power bank from laptop battery cells: Laptop battery cells (about 6 in parallel) Universal Dual USB 5V 1A 2.1A New Hot ... If you have any doubt ask it. Thanks...

What gauge wire is in ethernet cable?

Description : What gauge wire is in ethernet cable?

Last Answer : “Cat 5 cable typically has three twists per inch of each twisted pair of 24 gauge (AWG) copper wires within the cables.” (source)

How to Wire Speakers

Description : How to Wire Speakers

Last Answer : How to Wire Speakers Powerful speaker serve many purposes. Amongst these purposes are entertainment during special occasions and event sound system. To maximize its use, you need to understand how much ... long screws rather than short ones. Short screws may not be able to properly secure speakers.

How to Wire a Lamp

Description : How to Wire a Lamp

Last Answer : How to Wire a Lamp Wiring a lamp is something you need to do just in case your lamp breaks, and it so happens you keep on forgetting to get it repaired. It's a relatively easy process, with ... by yourself will also be a great help if you found the perfect lampshade from the flea market. Good luck.

How to Wire a House

Description : How to Wire a House

Last Answer : How to Wire a House Wiring a home is a challenging but worthwhile task. Familiarize yourself with things involved in wiring a home before you start this project. Make this your first priority because ... out more by hiring someone with both experience and expertise to help you in your first attempt.

How to Wire a Three-Way Switch ?

Description : How to Wire a Three-Way Switch ?

Last Answer : How to Wire a Three-Way Switch A three-way switch is the most common system installed in residential areas. This system is used to control a light and receptacle or more from two different switches ... wires for interior use. #14 wires are suggested to be used for protected circuits at 15 amperes.

How to wire a Ceiling Fan ?

Description : How to wire a Ceiling Fan ?

Last Answer : How to wire a Ceiling Fan To wire a ceiling fan is a relatively easy project. Usually, it is similar to working on replacing an existing light fixture. However, you will also need to check the ... have a loose wire connection. In case your fan vibrates or shakes, check if the blades are balanced.

What happens when a neutral wire touches a phase wire ?

Description : What happens when a neutral wire touches a phase wire ?

Last Answer : Maximum current flow due to Short circuit, limited value of fuse will burn else apparatus and conductor will be damaged.

Which wire can carry a higher current stranded wire or solid wire?

Description : Which wire can carry a higher current stranded wire or solid wire?

Last Answer : From the formula R=PL/A resistance rise with the fall of surface area ,inverse proportion relation between Resistance and Area ,so stranded wire has more area that a solid wire so more area less resistance. Less resistance/less electron flow opposition,more electron flow (current)

Why should switch be connected only on the live wire and never on the neutral wire?

Description : Why should switch be connected only on the live wire and never on the neutral wire?

Last Answer : Current runs from the transformer, through the protective device, through the load and back through the protective device (if on RCD).  If the protective device is only a CB the current passes ... the circuit will operate correctly but this is an unsafe practice and does not meet the standards.

State functions of ; i) Cable box ii) Guard wire iii) Shackle insulator iv) Stay wire used in service connection

Description : State functions of ; i) Cable box ii) Guard wire iii) Shackle insulator iv) Stay wire used in service connection

Last Answer : i) Function of Cable box: To hold and inspect incoming and outgoing terminals  ii) Function of Guard wire : A grounded conductor placed beneath an overhead transmission line in order to ground ... in service connection: To give mechanical Support to pole, line and prevent leakage current if any

The function of steel wire in ACSR conductors is

Description : The function of steel wire in ACSR conductors is (A) To take care of surges. (B) To reduce corona. (C) To reduce inductance. (D) To provide additional mechanical strength

Last Answer : The function of steel wire in ACSR conductors is To provide additional mechanical strength

A fuse wire should have :

Description : A fuse wire should have :  (A) Low specific resistance and high melting point (B) Low specific resistance and low melting point (C) High specific resistance and high melting point (D) High specific resistance and low melting point

Last Answer : A fuse wire should have : High specific resistance and low melting point

Increasing the number of turns of wire on the secondary of a transformer will

Description : Increasing the number of turns of wire on the secondary of a transformer will  (A) Decrease the secondary current (B) Increase the primary current (C) Have no effect on the secondary current (D) Increase the secondary current

Last Answer : Increasing the number of turns of wire on the secondary of a transformer will Decrease the secondary current 

For a round wire, the approximate value of fusing current is given by

Description : For a round wire, the approximate value of fusing current is given by

Last Answer : For a round wire, the approximate value of fusing current is given by  K√d3

Aluminium is not used as winding wire for the armature of a dc machine because

Description : Aluminium is not used as winding wire for the armature of a dc machine because  (1) aluminium has low resistivity (2) a large winding space is taken by aluminium conductors and creates ... ) the thermal conductivity of aluminium is low (4) aluminium has low conductivity as compared to copper

Last Answer : Aluminium is not used as winding wire for the armature of a dc machine because  (2) a large winding space is taken by aluminium conductors and creates jointing problems (3) the thermal conductivity of aluminium is low (4) aluminium has low conductivity as compared to copper

lf the wire which is vertical to this page has electron flow downwards the conductor will have

Description : lf the wire which is vertical to this page has electron flow downwards the conductor will have

Last Answer : lf the wire which is vertical to this page has electron flow downwards the conductor will have a counter-clockwise field in the plane of the paper

Nichrome wire is an alloy of?

Description : Nichrome wire is an alloy of?

Last Answer : Nichrome wire is an alloy of nickel and chromium.

If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes?

Description : If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes?

Last Answer : If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 0.4 ohm.

The resistance of a few meters of wire conductor in closed electrical circuit is?

Description : The resistance of a few meters of wire conductor in closed electrical circuit is?

Last Answer : The resistance of a few meters of wire conductor in closed electrical circuit is practically zero.

Wire-wound resistors are unsuitable for use at high frequencies because they?

Description : Wire-wound resistors are unsuitable for use at high frequencies because they?

Last Answer : Wire-wound resistors are unsuitable for use at high frequencies because they exhibit unwanted inductive and capacitive effects.

A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart...

Description : A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span?

Last Answer : A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span 4.0 cm.

In order to achieve high accuracy, the slide wire of a potentiometer should be?

Last Answer : In order to achieve high accuracy, the slide wire of a potentiometer should be as long as possible.