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What else can I help you with?
What type of voltage must be passed across a transformer?
A transformer must be connected to an alternating current (AC) supply of the correct voltage.
What must a magnet always have?
A magnetic field.
What must happen in order for the nail to be magnetized?
For a nail to be magnetized, it must be exposed to a strong magnetic field, which aligns the magnetic domains within the material. This alignment can occur through direct contact with a magnet, rubbing the nail with a magnet, or placing it in a solenoid with an electric current. Once the domains are aligned, the nail retains its magnetism until it is demagnetized by heat, impact, or a reverse magnetic field.
Does superconductor work in alternating current?
Yes, superconductors can carry alternating current (AC) without resistance, but their behavior differs from that in direct current (DC) applications. The critical frequency of the AC must be below a certain threshold for the superconductor to maintain its properties. However, at higher frequencies, the effects of magnetic fields and other factors can lead to energy losses, making them less effective for high-frequency AC applications. Overall, while superconductors can work with AC, their performance is influenced by frequency and other conditions.
Dose electricity create magnets or do magnets create eletricity?
Yes.A moving magnet inside a coil of wire creates electricity, however, a magnetic flux is produced by an electrical current. Many experiments are described on the internet regarding a current and iron filings to determine the magnetic flux.
What is type of current that transformers require to operate?
As a transformer requires an alternating magnetic flux within its core, then the current flowing in its primary winding must be alternating.
What is the best electric current?
This depends upon the application. For most home appliances and industrial machinery, alternating current is the best electric current. In most computer electronics, alternating current must be converted into direct current.
Why must you make a magnet by using batteries?
because battery supplies a direct current and to make a magnet with using the electrical method you need to supply direct current to the material {metal}which must be wounded with a coil {solenoid}.
What type of voltage must be passed across a transformer?
A transformer must be connected to an alternating current (AC) supply of the correct voltage.
Why are cryogens used in mri?
To keep the magnet cool. MRI machines need to generate a very strong magnetic field. They do this using superconducting electromagnet- basically a large coil of wire with a large current passing through it. The magnet must be kept very cold, almost at absolute zero, or it will not superconduct.
Why are most chargers very inefficient?
Voltage must be changed by a transformer, and the alternating current changed to direct current by diodes. Each step has a loss of energy.
How do you measure alternative current using ac ammeter?
I think you mean 'alternating' current ('alternative' means choice). The ammeter must be inserted in series with the load, just as with direct current.
Why must you use ac current for transformer?
Transformer is based on the principal of mutual inductance.Induction is produced due to sinusoidal wave form thats why we use Alternating current inspite of Direct current.
What must you have for an electromagnet to work that you don't need for a regular magnet?
To make an electromagnet work, you need an electric current flowing through a coil of wire, which is not needed for a regular magnet.
What form of magnetism must be used when constructing a magnetic crane?
Electromagnets are typically used when constructing a magnetic crane. This type of magnet relies on an electric current to generate a magnetic field, allowing the crane to control the lifting and moving of magnetic materials.
What is alternating current and give examples for this?
Alternating Current( AC ) constantly reverses itself as a result OS reversing electromotive force.One complete reversal is a cycle,and the number of cycles per second is the frequency of alternating current .The standard frequency of alternating current in the United States and the rest of North America is 60 Hz(1 Hz or hertz,equals 1 cycle per second )ex...Transformer,AC generator
How do transformers work since the two coils aren't connected to each other?
The AC - and it must be AC - in the primary coil generates an alternating magnetic field around the coil; this alternating magnetic field induces a current in the secondary.
