Networks Analysis and Synthesis - Engineering

Q1:

A 50 Hz current has an amplitude of 10 A. The rate of change of current at t = 0.005 after i = 0 and is increasing is

A 2221.44 A/s

B 0

C - 2221.44 A/s

D - 3141.6 A/s

ANS:B - 0

i = 10 sin 314.16 t, At t = 0.005, i = 314.16 cos (314.16 x .005) = 0.