2 out of 2 points
Faraday\'s law does not depend on the number of times the coil turns.
Answer Selected Answer: False
Your 11 kv to 220 volts represents a 50 to 1 stepdown. (There is 50 times more voltage in the primary than in the secondary.) You'll have to have a 50 to 1 turns ratio. That means 1/50 of the number of turns in the primary will be in the secondary, and that is 64 turns.
If the number of turns in the primary side of the transformer is 200 and the number of turns in the secondary coil is 100, the turns ratio is 200 to 100, or 2 to 1. This application would be a step-down transformer, reducing voltage by one half and doubling current.
ratio of secondry voltage to primary voltage is called voltage transformation ratio
The voltage ratio is the same as the turns ratio for an ideal transformer, and most transformers are close to being ideal. So use the following equation:Vs/Vp = Ns/Np
Divide the amount of turns in the secondary into 32 V and you'll get 8. Now multiply 8 times 60 turns and you'll get 480V.
Question 22 out of 2 pointsFaraday\'s law does not depend on the number of times the coil turns.Answer Selected Answer: False
Transformer turns ratio
ratio
It depends on the ratio of the number of teeth on the two gears.
Your 11 kv to 220 volts represents a 50 to 1 stepdown. (There is 50 times more voltage in the primary than in the secondary.) You'll have to have a 50 to 1 turns ratio. That means 1/50 of the number of turns in the primary will be in the secondary, and that is 64 turns.
That number is simply labeled with the unit "ampere-turns".
The turns ratio is the number of primary turns divided by the number of secondary turns. This is the same ratio as input current to output current. ie the turns ratio N = I1/I2
Transformer ratio, more correctly turns ratio, is the number of turns in the primary winding divided by the number of turns in the secondary winding.
You make a mark on the tire and rotate the tire one full round while counting the number of turns of the drive shaft. If the shaft turns 3 times while the tire turns once the ratio is 3:1.
As the number of turns in the coil increases, the strength of the electromagnet increases.
That's going to depend on all of these parameters: -- number of turns of wire in the electromagnet's coil -- number of Amperes of current flowing in the coil -- size and material of the electromagnet's core -- weight of the object to be picked up.
"The magnetic field produced by each turn interacts with the field of other turns and multiplies the effect, causing the inductance of a coil of wire to increase by the number of turns (N) squared. Therefore, if you double the number or turns, you quadruple the inductance."