This is a trick question. A transformer transforms voltage and currents. The magnetic field strength of 15 Newtons (a measurement of force, or power) is not changed - in other words what you put into a transformer (in terms of power) you get out the other side (minus losses). so 15N in, 15N out.
You can also think of it this way: voltage is applied to the primary side, which induces a magnetic field. This magnetic field induces a voltage in the secondary side. So the magnetic field produced in the primary side is the same magnetic field that produces the secondary voltage. Thus the answer is in the question - the magnetic field is 15N (there's only one).
The voltage phase shift between primary and secondary connections in a transformer is 180 electrical degrees.
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.
The voltage ratio is 2:3. So for every 2 volts in you'll get 3 volts out. Secondary = 1.5 x Primary Voltage.
It depends on the ratio of turns from primary to secondary.
If a secondary voltage is given across a particular resistive load in a series of known resistive loads, multiply the voltage by the ratio of the total load to the measures load to get total voltage. Example: You have a series of a 200 ohm resistor to a 100 ohm resistor. The votage measured across the 100 ohm is 2 volts. 200 + 100 = 300. 300 / 100 = 3. 2 X 3 = 6. Total Voltage in the circuit is 6V
Voltage on primary/Primary turns = Voltage on secondary/Secondary turns
The current in the secondary when the voltage is twice the primary will be one half of the primary. The current in the primary when the voltage is twice the secondary will be twice the secondary.
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.
If the primary is 1 and the secondary 200 then multiply the primary voltage by 200.
There is no physical connection between the primary and secondary of a transformer. A transformer is essentially 2 laminated coils of wire interwoven with each other. The magnetic field created in the primary coil is induced into the secondary coil creating voltage on the secondary side.
The turns ratio between the primary and the secondary.
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.
All transformers contain both primary and secondary coils. The primary will refer to the secondary when the voltage is to high. As voltage increases, it passes down the power to the secondary for efficient distribution of power.
A basic, two-winding, transformer consists of two, separate, coils (called windings) wound around a laminated silicon-steel core. The winding connected to the supply (input) is called the primary winding, and the winding supplying the load is called the secondary winding. Alternating current flowing in the primary winding sets up an alternating magnetic field in the core which induces a voltage into the secondary winding. If there are fewer turns in the secondary winding, then the secondary voltage is lower than the primary voltage. If there are more turns in the secondary winding, then the secondary voltage is higher than the primary voltage.
Both the primary and secondary wires have an insulated coating that allows them to be wound over top of each other on an iron core. The AC current flowing in the primary creates a magnetic field in the iron that then induces a voltage in the secondary based on the turns ratio between the primary and secondary coils.
Yes, although the question is poorly formed. The ratio of the voltage in the primary winding to the voltage in the secondary winding is the same as the ratio of the number of turns in the primary winding to the number of turns in the secondary winding. For example, if the primary had 1200 turns with the secondary having 120 turns, and the primary voltage was 50 volts, then the secondary would be 5 volts. This is a ratio of 10:1.
The turns ratio of Primary / Secondary tells you have the voltage and current will be changed. The secondary current will be (primary turns/secondary turns) times the primary current, and the secondary voltage will be (secondary turns / primary turns) times the primary voltage.CommentThe above answer is a little misleading, because the secondary current is determined by the load, and not by the transformer's ratio. It would, therefore, be more accurate to say that the primary current would be equal to the secondary current times the (primary turns/secondary turns) -i.e. not the other way around!