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Why is the wire in the primary coil is made thick than of secondary coil in step up transformer?
Wiki User
∙ 14y ago
i have no idea but maybe this is a possibility
voltage is inversely proportional to current
the voltage in the primary coil is lower than in the secondary therefore the current
in the primary coil is higher than in the secondary coil
in order to reduce energy lost in the primary coil, the resistance is lowered by
increasing the cross-section area of the coil as R is inversely proportion to area
So maybe it is thicker to reduce energy lost in the form of heat, thus making the transformer more efficient
Wiki User
∙ 14y ago
Wiki User
∙ 10y agoIt sounds like the secondary is a stepped down voltage from Primary and current is larger.
AnswerThe terms 'primary' and 'secondary' have nothing to do with the voltage ratings of a transformer's windings. The primary winding is the winding connected to the supply, while the secondary winding is the winding connected to the load.
If the question read, 'Why is the low-voltage winding thick and with few turns?' The answer is that the low-voltage has less turns than the high-voltage windings, and must carry a greater current so is thicker.
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What are stepdown transformers used for?
A step-down transformer accepts a given voltage on the primary winding (coil), and outputs a lower voltage on its secondary winding. A good example is a doorbell transformer you might buy for your home. It uses 120 volts from the house electrical system and steps it down to a safer 18 volts used to ring the doorbell. The voltage produced is a function of the 'turns-ratio' of the transformer. For example, if the transformer has 500 turns of wire in the primary, and 125 turns of wire in the secondary, we would say it has a turns ratio of 4:1 (pronounced "four-to-one"). If we feed 120 volts into the primary, the secondary would produce 30 volts. 120:30 = 4:1
How does the power transformers works?
Power transformers convert an alternating electric current into magnetism in the primary circuit. This magnetic flux flows around the core in the form of a fluctuating magnetic field. This flux is transformed back into an electric current in the secondary circuit . The primary circuit consists of a coil of wire, having a known number of turns, wound around a laminated soft iron core. The secondary circuit is also wound around the magnetic core but is electrically isolated from the primary.The linkage between coils is purely magnetic. The number of coils on the secondary dictates whether the transformer steps up the voltage on the primary,or steps it down. It is a simple correlation of turns.ie 100 coils on primary,50 on secondary halves the voltage and doubles the available current on the secondary. They are the most efficient electrical machines ever invented.
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The cast of This Mortal Coil - 2010 includes: Drew Henriksen as Officer Hardman Eileen Lacy as Maybel Chris Russoniello as Officer Leyshon James Taffurelli as Partygoer Emily Wallace as Alex
Who is the biggest of all transformer?
it would still be sideswipe whos the fastest in transformers 3, and how did you think that dino (mirage) is the fastest in transformers 3? is it becuz of the time when he grappled hatchet (fastest decepticon on foot) hatchet pulled him and dino look like he skated? bruh, it would still be sideswipe, he was known to be the speed of the autobots, he was an assasin dude.
What are the two coils in a transformer?
primary and secondary coilsAnswerPrimary and secondary windings.
Does the primary winding VA equal the secondary winding VA when a transformer is loaded?
no becouse transformer function depends on no of coil in primary and secondry coil
Which device tranfers electrial energy from a primary coil to a secondary coil induction?
transformer
What is the current in the secondary coil fi the current in the primary coil is 5.0A 10 loops on primary coil and 20 on secondary coil?
If I am not wrong then you have asked about a transformer. And its a current transformer. By theory of voltage transformer we know that Vs/Vp = Ns/Np So for answering your question we need the value of number of turns in primary and secondary coil. But you can use this equation to find your answer if you have other values. By using ohmic law you can convert voltage to current.
What is the difference between a secondary and primary coil?
The primary coil is the one with voltage applied, or the 'input'. The secondary coil is the one in which a voltage is induced by electromagnetism, or the 'output'. In a step up transformer, the secondary coil voltage is higher than the primary. In a step down transformer, the secondary coil voltage is lower than the primary. In an isolation transformer, the secondary coil voltage is the same as the primary. Here, the point of the transformer isn't to raise or lower voltage, but to keep a particular circuit electrically disconnected from another circuit, while still allowing the circuits to function together (through electromagnetism).
A step-up transformer has 300 turns on the primary coil and 90000 turns on the secondary coil if the current flowing through the secondary is 5 amps what is the current flowing in the primary?
If a step-up transformer has 200 turns on the primary coil and 3000 turns on the secondary coil, with a primary coil voltage of 90 volts and current of 30 amps, then the turns ratio is 200:3000, so the secondary voltage is 1350 voltage and the available current is 2 amps. (This ignores losses through the transformer.)
How many coils does a autotransformer have?
only single coil is use as a primary and secondary coil in a auto transformer.
What is meant by a primary coil and a secondary coil?
In a transformer, the primary coil is the coil that has voltage applied to it. The secondary coil is the coil that we take voltage from. Transformers are used to step up voltage, step down voltage, or simply to isolate circuits.
Can you use a step down transformer as a step up transformer by reversing the secondary voltage as a primary voltage?
Yes a Tesla coil or ignition coil is an example.
When secondary coil is open there is no current in the primary coil WHY?
I am assuming the question is about the power / distribution transformer and not the current transformer. The primary current is a function of load connected on secondary. With the open secondary, there is no load, no current, it is open circuit. Hence no primary current. However there is always some small amount of no load current in the primary winding.
Why is the number of turns in primary coil more than that of the secondary coil?
The number of turns or windings of a transformer can vary. There can be more in the primary, or more in the secondary, or there can be an equal number in a transformer that is simply used for isolation (an isoformer). More turns in the primary than secondary will create a step down transformer. More turns in the secondary are found in a step up transformer. The transformers on power poles have more turns in the primary to step the line voltage down for delivery to residential customers.
If the voltage in a transformer is twelve volts and the primary coil has ten turns and the secondary coil has twenty what is the voltage across the secondary coil?
I assume the primary has 12 volts applied. The voltage ratio from primary / secondary is equivalent to the turns ratio = 10/20, so the primary voltage is 1/2 of the secondary voltage. The secondary voltage is 24.
