In the circuit below the currents are named l, I3, and le The current direction is determined by the source (out of positive terminal) in the middle and right branches and is clockwise in the left branch. • la flows in the left branch of the circuit • le flows in the middle branch of the circuit • lcflows in the right branch of the circuit AB A B R2 R3 N When applying KVL: R4 • transverse the loop in a Clockwise direction • voltage drops are negative. • label the voltage across the resistors R1 Vc Vb with the same numeric subscript as the resistor R1:= 1.2k2 R= 1.8k? R3= 1.5kN R4= 0.5kN V= 10V V= 6V a. Redraw the circuit showing current directions and polarities of the voltage across the resistors. b. Write the KVL equations and apply ohms law for the loop R1-R2-R4-Vb (left Loop) loop R3-Vc-Vb-R4 (right Loop) Equation 1 Equation 2 c. Write the equation for KVL at node “N" Equation 3 z,

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In the circuit below the currents are named la, I8, and Iç The current direction is
determined by the source (out of positive terminal) in the middle and right branches and
is clockwise in the left branch.
• la flows in the left branch of the circuit
• ls flows in the middle branch of the circuit
AB
A
B
R3
N
R2
Ic flows in the right branch of the circuit
When applying KVL:
R4
• transverse the loop in a Clockwise direction
• voltage drops are negative.
R1
Vc
Vb
label the voltage across the resistors
with the same numeric subscript as the resistor
R1:= 1.2k2 R2= 1.8kN
R3:= 1.5k2 R4= 0.5k2
V= 10V
Ve= 6V
a. Redraw the circuit showing current directions and polarities of the voltage across
the resistors.
b. Write the KVL equations and apply ohms law for the
loop R1-R2-R4-Vb (left Loop)
loop R3-Vc-Vb-R4 (right Loop)
Equation 1
Equation 2
c. Write the equation for KVL at node "N" Equation 3
d. Put the equations in the form below and solve. if a variable does not appear in an
equation, let that N=0
N14 IA + N13 IB + N1c lc = k1
N24 LA + N23 Ig+ N2c Ic = k2
N34 IA + N3B Ig + N3c · Ic = k3
ЗА
e. Write the KVL equation for the top loop and solve for VaB
Transcribed Image Text:In the circuit below the currents are named la, I8, and Iç The current direction is determined by the source (out of positive terminal) in the middle and right branches and is clockwise in the left branch. • la flows in the left branch of the circuit • ls flows in the middle branch of the circuit AB A B R3 N R2 Ic flows in the right branch of the circuit When applying KVL: R4 • transverse the loop in a Clockwise direction • voltage drops are negative. R1 Vc Vb label the voltage across the resistors with the same numeric subscript as the resistor R1:= 1.2k2 R2= 1.8kN R3:= 1.5k2 R4= 0.5k2 V= 10V Ve= 6V a. Redraw the circuit showing current directions and polarities of the voltage across the resistors. b. Write the KVL equations and apply ohms law for the loop R1-R2-R4-Vb (left Loop) loop R3-Vc-Vb-R4 (right Loop) Equation 1 Equation 2 c. Write the equation for KVL at node "N" Equation 3 d. Put the equations in the form below and solve. if a variable does not appear in an equation, let that N=0 N14 IA + N13 IB + N1c lc = k1 N24 LA + N23 Ig+ N2c Ic = k2 N34 IA + N3B Ig + N3c · Ic = k3 ЗА e. Write the KVL equation for the top loop and solve for VaB
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