Answer:
The correct way to write this sentence would be; The bridge was <u>built</u> last year.
Explanation:
Built is the past tense version of build.
My purple pen is out of ink
It is ela. The punctuation go with the sentence or the grammar would be wrong! Good luck.
The impedance of transformer coil that has 600 feet is 10+j 22.62 Ω (ohms)
Explanation:
It is given that
a #22 copper wire has resistance= R= 10 Ω
inductance= I=0.06 H
N=60 HZ
X= 2π * N * I
=2 * 3.14 * 60 *0.06
X=22.62 Ω
Impedance is calculated by
Z = R + j * X
=10+ j (22.62 Ω)
Z= 10+ j 22.62 Ω
The impedance of a transformer coil that has 600 feet is Z= 10+ j 22.62 Ω
