AEE1000 / MEC1151 - Electrical Circuits and Analysis
Dr Hong Fan, University of Glasgow, 2022
Tutorial – Topic 2 : Basic Laws
[Ohm’s Law]
2.1 (a) Calculate current i in Figure 2.1 when the switch is in position 1.
(b) Find the current when the switch is in position 2.
2) V =
IR
15 = 1 ( 100 )
i. I =
I 00
= O '
15 A
#
b) V = IR Figure 2.1
15 = 11150 )
i. I = II.
' 50
: 0.1 A
#
[Nodes, Branches, and Loops]
2.2 How many branches and nodes does the circuit in Figure 2.2 have? Identify the independent
loops.
b- branches
3 nodes
3100ps
Figure 2.2
5h
IN an
V
4h
1
Dr Hong Fan, University of Glasgow, 2022
Tutorial – Topic 2 : Basic Laws
[Ohm’s Law]
2.1 (a) Calculate current i in Figure 2.1 when the switch is in position 1.
(b) Find the current when the switch is in position 2.
2) V =
IR
15 = 1 ( 100 )
i. I =
I 00
= O '
15 A
#
b) V = IR Figure 2.1
15 = 11150 )
i. I = II.
' 50
: 0.1 A
#
[Nodes, Branches, and Loops]
2.2 How many branches and nodes does the circuit in Figure 2.2 have? Identify the independent
loops.
b- branches
3 nodes
3100ps
Figure 2.2
5h
IN an
V
4h
1
