Question

Question 1 (20 Marks) Figure Q1 shows an electrical network supplied by an ac voltage $V\angle 40^\circ V$. The rms currents $I_1$ and $I_2$ are 2 A and 4 A respectively. Calculate; (a) The active power dissipated in 1 $\Omega$ and 2 $\Omega$ resistors. 4 Marks (b) The reactive power absorbed by the coil. 2 Marks (c) The reactive power generated by the capacitor. 2 Marks (d) The active power delivered by the voltage source. 2 Marks (e) The reactive power delivered by the voltage source. 2 Marks (f) The apparent power of the circuit and the phase delay of the current $I$ with respect to supply voltage $V\angle 40^\circ V$. 8 Marks

          Question 1
(20 Marks)
Figure Q1 shows an electrical network supplied by an ac voltage $V\angle 40^\circ V$. The rms currents
$I_1$ and $I_2$ are 2 A and 4 A respectively. Calculate;
(a) The active power dissipated in 1 $\Omega$ and 2 $\Omega$ resistors.
4 Marks
(b) The reactive power absorbed by the coil.
2 Marks
(c) The reactive power generated by the capacitor.
2 Marks
(d) The active power delivered by the voltage source.
2 Marks
(e) The reactive power delivered by the voltage source.
2 Marks
(f) The apparent power of the circuit and the phase delay of the current $I$ with respect
to supply voltage $V\angle 40^\circ V$.
8 Marks

Question 1
(20 Marks)
Figure Q1 shows an electrical network supplied by an ac voltage V∠ 40^∘ V. The rms currents
I1 and I2 are 2 A and 4 A respectively. Calculate;
(a) The active power dissipated in 1 Ω and 2 Ω resistors.
4 Marks
(b) The reactive power absorbed by the coil.
2 Marks
(c) The reactive power generated by the capacitor.
2 Marks
(d) The active power delivered by the voltage source.
2 Marks
(e) The reactive power delivered by the voltage source.
2 Marks
(f) The apparent power of the circuit and the phase delay of the current I with respect
to supply voltage V∠ 40^∘ V.
8 Marks

Added by Gary M.

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