Question 469: AC fundamentals

Question

A 100 $$\Omega $$ resistance and a capacitor of 100 $$\Omega $$ reactance are connected in series across a 220 V source. When the capacitor is 50% charged, the peak value of the displacement current is

Accepted Answer

Net impedance, Z = $$\sqrt {{R^2} + X_L^2} $$ = $$100\sqrt 2 \,\Omega $$
Peak value of displacement current = Maximum conduction current in the circuit
= $${{{\varepsilon _0}} \over Z}$$ = $${{220\sqrt 2 } \over {100\sqrt 2 }}$$ = 2.2 A

Answer

2.2 A

Answer

11 A

Answer

4.4 A

Answer

11$$\sqrt 2 A$$

AC fundamentals

A 100 $\Omega resistance and a capacitor of 100 \Omega $ reactance are connected in series across a 220 V source. When the capacitor is 50% charged, the peak value of the displacement current is

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