Engr. 17
Homework #1
Fall 2020
Part I
Problem 1. For the circuit of Figure P-1, find the values
of the labeled currents ia and ib .
ia
4V
10
ib
Figure P-1
Problem 2. Write an expression for the labeled
current iR in Figure P-2. Note that 1k = 1000 .
iR
5sin(t )
1k
Figure P-2
Problem 3. Solve for the values of i X and vY in
iX
Figure P-3.
vY
2A
4
Figure P-3
Problem 4.
iR
a) Find the values of iR and vR in
Figure P-4.
2A
vR
iS
4
b) Find the current iS in Figure P-4.
Figure P-4
4V
Engr. 17
Homework #1
Problem 5. For the circuit of Figure P-5, it is given
that vS = 2.5V . What is the value of v X ?
Fall 2020
vS
vX
1A
Figure P-5
Problem 6. For the circuit in Figure P-6, find the
value of the labeled voltage vZ .
vZ
4
3A
14V
Figure P-6
Problem 7. Consider the current-voltage
(I-V) characteristic corresponding to the terminals labeled “a”
and “b” in Figure P-7. Does this characteristic more resemble
that of an ideal current source or that of an ideal voltage
source? Why?
a
1A
2V
b
Figure P-7
Engr. 17
Homework #1
Fall 2020
Part II
The following problems require use of Kirchhoff’s laws.
Problem 1. For the circuit of Figure P-1,
find v X and vY .
vX
4
2V
2A
vY
Figure P-1
Problem 2. For the circuit of Figure P-2,
find v X and vY .
vX
4
2V
2A
vY
Figure P-2
Problem 3. For the circuit of Figure P-3,
find vY , i1 , i2 , and i3 .
i1
i3
i2
2V
4
2A
Figure P-3
vY