Hi,
One part of this question, i am uncertain of.
"The current and Voltage through an impedance are known"
\(u(t) = \sqrt2\cdot110cos(\omega t+85)V\)
\(i(t) = \sqrt2\cdot0.4cos(\omega t+15)A\)
Calculate the power and reactive power in the impedance.
The powerangle is 70°
So we have \(V_{rms} \cdot I_{rms} \cdot cos 70^\circ= 15A\)
and \(V_{rms} \cdot I_{rms} \cdot sin 70^\circ = 41.34VA\)
"Calculate the apparent power in the impedance"
Apparent power = \(V_{rms} \cdot I_{rms} = 44\)
"Calculate the impedance Z"
Not sure about this one, is it simply 110/0.4 = 275Ω ?
One part of this question, i am uncertain of.
"The current and Voltage through an impedance are known"
\(u(t) = \sqrt2\cdot110cos(\omega t+85)V\)
\(i(t) = \sqrt2\cdot0.4cos(\omega t+15)A\)
Calculate the power and reactive power in the impedance.
The powerangle is 70°
So we have \(V_{rms} \cdot I_{rms} \cdot cos 70^\circ= 15A\)
and \(V_{rms} \cdot I_{rms} \cdot sin 70^\circ = 41.34VA\)
"Calculate the apparent power in the impedance"
Apparent power = \(V_{rms} \cdot I_{rms} = 44\)
"Calculate the impedance Z"
Not sure about this one, is it simply 110/0.4 = 275Ω ?
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