The primary coil of an ideal transformer is connected to a 120-V source and draws 1.0 A. The secondary coil has 700 turns and supplies an output current of 6.0 A to run an electrical device.
What is the voltage across the secondary coil?
How many turns are in the primary coil?
If the maximum power allowed by the device (before it is destroyed) is 290 W, what is the maximum input current to this transformer?
Part A = Transformers 1, 2, and 3 have more primary than secondary turns, so they are step down transformers. Transformers 4 and 5 have more secondary turns so are step up transformers.
Part B = From greatest to least: 4 = 5; 2 = 3; 1
Part C = From greatest to least: 1 = 2 = 3; 4; 5
Six transformers have the rms primary voltages (Vp), number of primary turns (Np), and number of secondary turns (Ns) listed below.
Which of the transformers are step-up transformers? Which of the transformers are step-down transformers?
Rank the transformers on the basis of their rms secondary voltage.
100 A of rms current is incident on the primary side of each transformer. Rank the transformers on the basis of their rms secondary current.