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Capacitors - Technical MCQs

Q1:

What is the circuit's total current?

A 4.57 mA

B 9.327 mA

C 11.570 mA

D 13.830 mA

ANS:A - 4.57 mA

Ir and Ic are not in phase (90 degrees out of phase).

In a graphical analysis, they will form a right triangle, the longest side (hypotenuse) is the total current (geometric sum), which can be solved by using the Pythagorean theorem. It=sqrt(Ir^2 + Ic^2).