1)The current changing according to the relation I=5cos(3t). There are three cir
ID: 1698794 • Letter: 1
Question
1)The current changing according to the relation I=5cos(3t). There are three circuits.circuit 1: L=2mh Circuit 2: R=2Kohms Circuit 3=2.5uf
For each circuit, Find the following:
a)The voltage as a function of time
b)the resistance/or reactance of the circuit
c)The maximum value of the voltage
2)The current changes according to the relation I=cos20t
Circuit: C=8mf L=2h R=13.0ohms
a) find the capacitive reactance of the circuit
b)the inductive reactance of the circuit
c) what is the total reactance of the circuit
d) what is the resonance angular frequency and resonance frequency of the circuit
Please i really need help in solving this problems.
Explanation / Answer
)The current changing according to the relation I=5cos(3t). There are three circuits. circuit 1: L=2mh Circuit 2: R=2Kohms Circuit 3=2.5uf For each circuit, Find the following: a)The voltage as a function of time L. U=5*3*2e-3*cos(3t+pi/2) R. U=5*2e3*cos(3t) C. U=5*cos(3t-pi/2)/(2.5e-6*3) b)the resistance/or reactance of the circuit Zl=3*2e-3 R=2e3 Zc=1/(2.5e-6*3) c)The maximum value of the voltage it is the amplitude of the voltages above 2)The current changes according to the relation I=cos20t Circuit: C=8mf L=2h R=13.0ohms a) find the capacitive reactance of the circuit Zc=1/(20*8e-3)=6.25 b)the inductive reactance of the circuit Zl=20*2=40(ohm) c) what is the total reactance of the circuit 36.2ohm d) what is the resonance angular frequency and resonance frequency of the circuit w=sqrt(1/LC)=7.9(rad/s)
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