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Does the formula used to calculate the turns ratio uses the phase voltages and phase current?
For a transformer, the turns ratio always applies between its primary and secondary windings. So the turns ratio for a three-phase transformer is the ratio of primary to secondary phase voltages, not between line voltages.
How step up transformer step up the input voltage?
It depends on the ratio of turns from primary to secondary.
How the input voltage is changed to an output voltage in a transformer?
Transformers work on the induction principal of the flux of the primary winding cutting the wires of the secondary winding. The amount of turns in the primary in relationship to the amount of turns in the secondary is the transformers winding ratio. This ratio is what governs the voltage value of the secondary winding.
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?
To convert voltage from primary coil to secondary coil in a transformer, you can use the formula VP/VS = NP/NS, where VP is primary voltage, VS is secondary voltage, NP is number of turns in primary coil, and NS is number of turns in secondary coil. Given VP = 120V, VS = 24V, and we need to show the primary coil has 5 times as many turns as the secondary coil. Plug in the values: 120/24 = NP/NS. Solving for the ratio of turns, we get NP/NS = 5. This means the primary coil has 5 times as many turns as the secondary coil in this transformer scenario.
What is a transformer called that increases voltage?
A transformer that increases voltage is a step-up 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.
An isolation transformer has 500 turns on the primary winding how many turns are on the secondary?
An isolation transformer is intended to isolate the ground path in the primary from the secondary while maintaining the same voltage on the secondary. This means a turns ratio of 1 to 1. If there are 500 turns on the primary, then there will be 500 turns on the secondary.
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.
A transformer has 20 primary windings and 100 secondary windings If the secondary voltage is 25 V find the primary voltage?
Voltage on primary/Primary turns = Voltage on secondary/Secondary turns
How many turns in secondary coil in Transformer?
It depends on the type of transformer.If it is a step up transformer the number of turns in secondary side is higher than primary.Stepdown means it will have fewer number of windings on the secondary side turns when compared with the primary side.An isolation transformer has the same number of windings on the primary as the secondary.The ratio of the windings is proportional to the increase or decrease in the secondary voltage. For example, twice the windings doubles the voltage and 1/2 the windings halves the secondary voltage. The isolation transformer is denoted as 1:1 and has the same voltage on the secondary as the primary.The ratio of secondary turns to primary turns is the same as the ratio of secondary voltage to primary voltage.e.g. if the secondary to primary turns ratio is 1/10, then the secondary voltage will be one tenth of the primary voltage.
How do you calculate primary current?
If it's a step up or step down transformer and you know the secondary side current, multiply the secondary current by the turns ratio. If you know the power in the secondary winding but not the current, divide the secondary power by the secondary voltage to get the secondary current and then multiply the secondary current by the turns ratio to get the primary current. The turns ratio is the number of turns on the secondary winding divided by the number of turns on the primary winding. For a step up transformer, the turns ratio will be greater then one. If it's a step down transformer, then the turns ratio will be less than one. If you don't know the turns ratio, divide the secondary voltage by the primary voltage to get the turns ratio.
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.
What will be the unloaded voltage if the primary is connected to 500V on a transformer that has 200 turns on the primary and 100 turns on the secondary?
If that is 500VDC, the secondary will have 0VDC. if that is 500VAC, the secondary will have 250VAC.
Given a Transformer with 110vac at 1 amp applied to the primary with 1000 turns and the secondary of 500 turns what is the voltage current and power of the secondary?
Given a Transformer with 110vac at 1 amp applied to the primary with 1000 turns and the secondary of 500 turns what is the voltage current and power of the secondary?
What is mean by 2is to 3 turns ratio Transformer what is primary turns and secondary turns?
with an ideal electrical transformer with an input current of 2 amps and an output current of 1 amp what is the turns ratio of the secondary and primary coils
What is the definition of transformation ratio?
The turns ratio of a transformer is the number of primary turns to secondary turns. This defines how the transformer will change the voltage and current. For N1 primary turns, and N2 secondary turns, N1/N2 will be the turns ratio; the secondary voltage will be:the primary voltage x (N2/N1); The secondary current will be:primary current x (N1/N2)
How can find the primary turns of the transformer knowing the primary voltage of the transformer?
The ratio of the primary voltage to the secondary voltage is proportional to the ratio of windings. So if the primary voltage is 120 volts and the secondary is 240 volts there are twice as many turns in the secondary.AnswerAs the previous answer says, you can work out the turns ratio of a transformer, but knowing the primary and secondary voltages will not help you determine how many turns are on each winding.
