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A transformer for a laptop computer converts a 120 volt input to 24 volt output show that the primary coil has fives times as many turns as the secondary coil has?
Wiki User
∙ 14y ago
120-V to 24-V has a 5:1 ratio.
120/24=5.
It's as simple as that.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoIf you would consider the primary coil only, you would find one fifth of the total voltage accross any 1/5 length of it.
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What is the resistance of the secondary of a 24 volt transformer?
For the 120/24V transformer, the primary side is around 50ohm, the secondary side is 2~
What is the voltage phase shift between primary and secondary line voltages in star-delta transformer connection?
The voltage phase shift between primary and secondary connections in a transformer is 180 electrical degrees.
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
How step up transformer step up the input voltage?
It depends on the ratio of turns from primary to secondary.
Why phase displacement is maintained between primary and secondary windings of the transformer?
To eliminate certain harmonics.
What are the two coils in a transformer?
primary and secondary coilsAnswerPrimary and secondary windings.
What happen if the number of loops in the primary and secondary coils in a transformer are the same?
If the number of turns in the primary is the same as the secondary, this would be an isolation transformer. Primary and secondary voltages should match (minus the inherent transformer losses), as should the current.
Is possible to put 3 phase transformer primary as secondary and secondary as primary?
A: The only way can be possible if the transformer is an isolation type. Yes, you can put the input into the secondary side. This will create a step-up transformer.
What is the function of the primary current when the secondary winding of the transformer is open?
When the secondary of a transformer is opened, there is no longer any load on the transformer. There will be some current flowing in the primary winding, which is needed to induce the voltage in the secondary. This primary current is referred to as the "no load" current, and is indicative of the core losses in the transformer.
Is the transformer's iron core called the primary?
No. the primary winding is called the primary; the secondary winding is called the secondary. These are both wrapped around the iron core of the transformer. The core helps magnetically link the primary and secondary, which causes the transformation of voltage and current from primary to secondary.
Why you uluminium on primary side of transformer?
This isn't the case. You can have aluminium or copper on primary or secondary side of a transformer.
If a Transformer primary and secondary are equal?
You will have a 1:1 ratio isolation transformer.
What is difference betweena step up transformer and step down transformer?
The difference between the two transformers is the coil ratios between the primary and secondary windings. A transformer that increases voltage from primary to secondary has more secondary winding turns than primary winding turns and is called a step-up transformer. Conversely, a transformer with fewer secondary windings does just the opposite and is called a step-down transformer.
A transformer with a primary of 1200 turns and a secondary of 400 turns has what ratio?
A transformer primary of 1200 turns with a secondary of 400 turns is a ratio of 3 to 1.
Want to know about transformer connection?
primary or secondary
If a transformer has 20 primary windings and 100 secondary windings and the secondary voltage is 25 what is the primary voltage?
Transformer step-up/step-down voltage is turns-ratio, so if a transformer has 20 primary windings and 100 secondary windings (a turns-ratio of 1 to 5) and the secondary voltage is 25, then is the primary voltage is 5.
Does a step-up transformer have fewer turns of wire in the primary than in the secondary?
Yes, a step-up transformer has fewer turns of wire in the primary than in the secondary.
