i(t) = ?
Vc(t) = ?
Vc(t) = ?
i(t) = ?
In the bridge shown, Z1 = 300 ohm, Z2 = 400 – j300 ohm, Z3 = 200 + j100 ohm. The Z4 at balance is
Use Z1 x Z4 = Z2 x Z3.
Circuit for Q.6 and Q.7
Q. i1(t) = ?
i2(t) = ?
In a two element series circuit, the applied voltage and the resulting current are v(t) = 60 + 66 sin (1000t) V, i(t) = 2.3sin (1000t + 68.3) 3 A. The nature of the elements would be
RC circuit causes a positive shift in the circuit.
P = 269 W, Q = 150 VAR (capacitive). The power in the complex form is
S = P – jQ.
Q = 2000 VAR, pf = 0.9 (leading). The power in complex form is
Use cos T = 0.9 or T = 25.84 degrees.
Q = S sin T or S = 4588.6 VA
p = S cos T or P = 0.9 X 4588.6 4129.8 VA.
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