t = 0 30 + 5 - i 12 V 4 mH v 320 O A) -1 A O B) 0 A O C) -2 A O D) 2 A O E) 1A
Sinusoids And Phasors
Sinusoids are defined as the mathematical waveforms that are used to describe the nature of periodic oscillations.
Circuit Theory
Electric circuits are a network that comprises of a closed-loop, which helps in providing a return path for the current through a switch. When the switch is activated, the load operates, and the current accepts a path to finish the circuit at a low potential level from the opposing high potential level. Electric circuits theory is a linear analysis that helps in establishing a linear relation of voltage and current for R (resistance), L (inductance), and C (capacitance).
In the circuit below, the switch was opened at t=0 after being closed for a long time. What is the value of i1(t) current i1(t=0-)? (t=0-, approaching zero from the left)
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