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In an ideal transformer the voltage and current in primary coil are 200V and 2A respectively if voltage in secondary coil is 2000V then find value of current in the secondary coil?
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In an ideal transformer the voltage and current in primary coil are 20...
Ns/Np =Ip/Is
Ns =no. of turns in secondary coil
No = no of turns in primary coil
Ip = current in primary coil
Is = current in secondary coil
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In an ideal transformer the voltage and current in primary coil are 20...
Transformer Basics

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. It consists of two or more coils of wire, known as windings, which are wrapped around a common iron core. The primary winding is connected to the input voltage source, while the secondary winding is connected to the load.

Ideal Transformer and Turns Ratio

In an ideal transformer, there are no losses, and the primary and secondary windings are perfectly coupled. This means that all of the magnetic flux generated by the primary winding passes through the secondary winding. The turns ratio of a transformer is defined as the ratio of the number of turns in the secondary winding to the number of turns in the primary winding.

Voltage and Current Relationship in a Transformer

According to the principles of electromagnetic induction, the voltage across the primary winding (Vp) is proportional to the number of turns in the primary winding (Np) and the rate of change of magnetic flux. Similarly, the voltage across the secondary winding (Vs) is proportional to the number of turns in the secondary winding (Ns).

The current flowing through the primary winding (Ip) is determined by the load connected to the secondary winding. The primary and secondary currents are related by the turns ratio of the transformer. In an ideal transformer, the product of the primary current and the number of turns in the primary winding is equal to the product of the secondary current and the number of turns in the secondary winding.

Calculation of Secondary Current

Given that the voltage in the primary coil (Vp) is 200V and the current in the primary coil (Ip) is 2A, and the voltage in the secondary coil (Vs) is 2000V, we can use the turns ratio to calculate the current in the secondary coil (Is).

The turns ratio (Np:Ns) can be determined by the ratio of the primary voltage to the secondary voltage:

Np:Ns = Vp:Vs

Substituting the given values:

Np:Ns = 200V:2000V
Np:Ns = 1:10

Since the turns ratio is 1:10, the current in the secondary coil (Is) is given by:

Is = (Ip * Np) / Ns

Substituting the given values:

Is = (2A * 1) / 10
Is = 0.2A

Therefore, the value of the current in the secondary coil is 0.2A.
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Read the following text and answer the following questions on the basis of the same: Spark coil The principle of electromagnetic induction was discovered by Michael Faraday in 1831. Induction coils were used widely in electrical experiments and for medical therapy during the last half of the 19th century, eventually leading to the development of radio in the 1890's. The spark coil designed on the principle of electromagnetic induction was the heart of the earliest radio transmitters. Marconi used a spark coil designed by Heinrich Rhumkorff in his early experiments. An induction coil or "spark coil" is a type of electrical transformer used to produce high-voltage pulses from a low-voltage (DC) supply. To create the flux changes necessary to induce voltage in the secondary coil, the direct current in the primary coil is repeatedly interrupted by a vibrating mechanical contact called interrupter.The spark scoil consists of two coils of insulated wire wound around a common iron core. One coil, called the primary coil, is made from relatively few (tens or hundreds) turns of coarse wire. The other coil, the secondary coil typically consists of up to a million turns of fine wire (up to 40 gaug e). An electric current is passed through the primary, creating a magnetic field. Because of the common core, most of the primary's flux couples with the secondary. When the primary current is suddenly interrupted, the magnetic field rapidly collapses. This causes a high voltage pulse to be developed across the secondary terminals due to electromagnetic induction. Because of the large number of turns in the secondary coil, the secondary voltage pulse is typically many thousands of volts. This voltage is sufficient to create an electric spark, to jump across an air gap separating the secondary's output terminals. For this reason, this induction coils are also called spark coils. To operate the coil continually, the DC supply current must be repeatedly connected and disconnected. To do that, a magnetically activated vibrating arm called an interrupter is used which rapidly connects and breaks the current flowing into the primary coil. The interrupter is mounted on the end of the coil next to the iron core. When the power is turned on, the produced magnetic field attracts the armature. When the armature has moved far enough, contacts in the primary circuit breaks and disconnects the primary current. Disconnecting the current causes the magnetic field to collapse and create the spark. A short time later the contacts reconnect, and the process repeats. An arc which may form at the interrupter contacts is undesirable. To prevent this, a capacitor of 0.5 to 15 μF is connected across the primary coil.Why most of the primary's flux couples with the secondary in spark coil?

Read the following text and answer the following questions on the basis of the same:Spark coil The principle of electromagnetic induction was discovered by Michael Faraday in 1831. Induction coils were used widely in electrical experiments and for medical therapy during the last half of the 19th century, eventually leading to the development of radio in the 1890's. The spark coil designed on the principle of electromagnetic induction was the heart of the earliest radio transmitters. Marconi used a spark coil designed by Heinrich Rhumkorff in his early experiments. An induction coil or "spark coil" is a type of electrical transformer used to produce high-voltage pulses from a low-voltage (DC) supply. To create the flux changes necessary to induce voltage in the secondary coil, the direct current in the primary coil is repeatedly interrupted by a vibrating mechanical contact called interrupter.The spark scoil consists of two coils of insulated wire wound around a common iron core. One coil, called the primary coil, is made from relatively few (tens or hundreds) turns of coarse wire. The other coil, the secondary coil typically consists of up to a million turns of fine wire (up to 40 gaug e). An electric current is passed through the primary, creating a magnetic field. Because of the common core, most of the primary's flux couples with the secondary. When the primary current is suddenly interrupted, the magnetic field rapidly collapses. This causes a high voltage pulse to be developed across the secondary terminals due to electromagnetic induction. Because of the large number of turns in the secondary coil, the secondary voltage pulse is typically many thousands of volts. This voltage is sufficient to create an electric spark, to jump across an air gap separating the secondary's output terminals. For this reason, this induction coils are also called spark coils. To operate the coil continually, the DC supply current must be repeatedly connected and disconnected. To do that, a magnetically activated vibrating arm called an interrupter is used which rapidly connects and breaks the current flowing into the primary coil. The interrupter is mounted on the end of the coil next to the iron core. When the power is turned on, the produced magnetic field attracts the armature. When the armature has moved far enough, contacts in the primary circuit breaks and disconnects the primary current. Disconnecting the current causes the magnetic field to collapse and create the spark. A short time later the contacts reconnect, and the process repeats. An arc which may form at the interrupter contacts is undesirable. To prevent this, a capacitor of 0.5 to 15 μF is connected across the primary coil.Spark coil is a type of

In an ideal transformer the voltage and current in primary coil are 200V and 2A respectively if voltage in secondary coil is 2000V then find value of current in the secondary coil?
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