The time constant and R-C circuit may also be defined as the time during which the charging current falls to ______ percent of its initial maximum value,
A. 37
B. 42
C. 63
D. 73
Answer:A
The time constant and R-C circuit may also be defined as the time during which the charging current falls to ______ percent of its initial maximum value,
A. 37 B. 42 C. 63 D. 73