All the circuits are in Parallel 24. Find the total admittance for the networks

Question

All the circuits are in Parallel

24. Find the total admittance for the networks of fig. 15.142. identify the values of total conductance and admittance, and draw the admittance diagram.
a. R = 10, L = 60

b. R1 = 22, C = 6 and R2 = 2.2

c. R = 3k, L = 6k, C = 9k

28. repeat problem 27 for the circuit in fig. 15.147, replacing IL with IC in parts (c) and (d).
f = 60Hz, R = 10kohms, C = 0.13uF, IS = 2mA <20 deg

a. Find the total admittance YT in polar form.

b. Draw the admittance diagram.

c. Find the voltage E and the current IR and IC in phasor form.

d. Draw the phasor diagram of the currents IS, IR, and IC, and the voltage E.

e. Verify Kirchhoff’s current law at one node.

f. find the average power delivered to the circuit.

Explanation / Answer

1. Remove the load from the circuit. 2. Determine the open circuit voltage at the load's connection point. 3. Pretend to short the voltage source 4. Compute the resistance between the load terminals. 5. Draw the Thevinin's equivalent using the voltage from Step 2 and the resistance from Step 4.

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