1. (a) the equivalent resistance, (b) V0,
For the system of resistors shown below R1=2, R2=3, R3=6, and R4=4. If I=2A calculate
(a) the equivalent resistance,
(b) V0,
(c) the current through each resistor, and
(d) the potential difference across each resistor.
R1=2
R2=3
R3=6
R4=4 V0
I=2

2. (a) Calculate the equivalent resistance.
R2 and R3 are in parallel.
I=2
R1=2 R2 =3
R3=6 V0
R4=4
R1, R23, and R4 are in series.
I=2
R1=2 V0
R23=2
R4=4

3. (b) Calculate V0.
I=2 V0
Req=8

4. (c) Calculate the current through each resistor.
I1 = I4 = 2 A
I=2
R1=2 R2 =3
R3=6 V0
R4=4
Check: I2 + I3 = 4/3 + 2/3 = 2 A, as it must be.

5. (d) Calculate the potential difference across each resistor.
V1 = IR1 = (2)(2) = 4 V
I=2
R1=2 R2 =3
R3=6 V0
Calculated in part (c).
R4=4
V4 = IR4 = (2)(4) = 8 V
Check: V1 + V23 + V4 = = 16 V.
Agrees with part (c).