A 320 μH coil is in series with a 3.3 k resistor. How long does it take for current to build up to its full value?
A. 48 s
B. 0.48 μs
C. 0.48 s
D. .48 ms
Answer:B
A 320 μH coil is in series with a 3.3 k resistor. How long does it take for current to build up to its full value?
A. 48 s B. 0.48 μs C. 0.48 s D. .48 ms
Explanation: time constant T=(L/R)