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24 May 2021
The following three impedances are connected in series across a 40 V, 20 kHz supply: a
resistance of 8 Ω, a coil of inductance 130 μH and 5 Ω resistance, and a 10 Ω resistor in
series with a 0.25 µF capacitor. Sketch a neat diagram representing this network, and
calculate:
5.1.1 The inductive and capacitive reactance’s. (4)
5.1.2 The magnitude and phase angle of the circuit impedance. (4)
5.1.3 The voltage drops across resistance, inductance and capacitance.
The following three impedances are connected in series across a 40 V, 20 kHz supply: a
resistance of 8 Ω, a coil of inductance 130 μH and 5 Ω resistance, and a 10 Ω resistor in
series with a 0.25 µF capacitor. Sketch a neat diagram representing this network, and
calculate:
5.1.1 The inductive and capacitive reactance’s. (4)
5.1.2 The magnitude and phase angle of the circuit impedance. (4)
5.1.3 The voltage drops across resistance, inductance and capacitance.
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