Homework Answers
The magnitudes of voltage and current in an AC circuit follow Ohm's same as that in DC.
in DC ; V = IR
in AC ; V = IZ
here Z is impedance and is similar to resistance, but it is a complex quantity. Meaning, it not only has a magnitude but also a direction. The direction of impedance is a result of combination of its components (R,L and C).
The direction of impedance decides direction of current. Example: If impedance has angle 20 deg then current will have angle -20 deg (because opposition). Meaning current will be 20 deg behind voltage.
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b) Understand the relationship between voltage and current in sinusoidal AC circuit.
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Please answer asap with steps
In a series R-L-C circuit powered by an ac sinusoidal voltage source, which phasor diagram best illustrates the relationship between the current i and the potential drop vc across the capacitor?
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Please answer asap with steps
In a series R-L-C circuit powered by an ac sinusoidal voltage source, which phasor diagram best illustrates the relationship between the current i and the potential drop vc across the capacitor?
1. A sinusoidal voltage is applied to the circuit. Draw the waveform of current and voltage assuming 5Hz frequency. What is the following value for current? (a) rms, (b) peak, (c) peak-to peak, (d) average, (e) change in current from 0.12ms to 0.2ms R1 10V P-F
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