الفيزياء العامة الجزء الثاني#موقع الفيزياء.كوم

Lectures in General Physics
c
r 1
a
ξ 1
ξ 2
R
r 2
b
8.19) (a) Find the potential difference
between points a and b in the
circuit in Figure 8.35. (b) Find the
currents I 1 , I 2 , and I 3 in the circuit.
I
3Ω
10V
Figure 8.32
8.17) In Figure 8.33 find the current
in each resistor and the potential
difference between a and b. Put
ξ 1=6.0V, ξ 2=5.0V, ξ 3=4.0V,
R 1 =100Ω and R 2 =50Ω.
a
ξ1
ξ2
ξ3
R 1
Figure 8.33
b
R 2
8.18) (a) Find the three currents in
Figure 8.34. (b) Find V ab . Assume
that R 1 =1.0Ω, R 2= 2.0Ω, ξ 1=2.0 V,
and ξ 2=ξ 3=4.0V.
5V
a
5Ω
7Ω
I 1
I 2
I 3
Figure 8.35
8.20) Determine the current in each
of the branches of the circuit shown
in figure 8.36.
10Ω
6Ω
1Ω
3Ω
6V
Figure 8.36
b
3Ω
24V
8.21) Calculate the power dissipated
in each resistor in the circuit shown
in figure 8.37.
R 1 a R 1
ξ 1
R 2
ξ 3
I 1
I 2
4Ω
1Ω
I 3
ξ 2
R 1
16V
4Ω
12V
R 1
b
Figure 8.34
Figure 8.37
Dr. Hazem Falah Sakeek