30) Direct current always runs in the same direction and is often of a uniform s

ID: 1474703 • Letter: 3

Question

30) Direct current always runs in the same direction and is often of a uniform

strength. Alternating current flows briefly in one direction, then weakens,

stops, flows briefly in the opposite direction, then weakens and repeats the

cycle. In other words, direct current is in the same direction and often steady

while alternating current is always changing strength and direction. Considering

how transformers are made and the Maxwell’s Equation x E = -B/t,

transformers should work:

a) only on direct current

b) only on alternating current

c) on both direct and alternating current

d) on neither direct or alternating current

b) only on alternating current

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.