Solution to Frame 92

In the circuit below, find I1, I2, and I3.

I1 = Ea =

I2 = Ea

R1

R2

I1 = _____________, I2 = __________, I3 = ___________.

10v =

10v =

20Ω

5Ω

0.5 amp

2 amp

Solution to Frame 93

I1 = Ea = 100v = 2 amp

To find I1, you use the formula I1 = Ea

R1

50Ω

R1

To find I2, you use the formula I2 = Ea

I2 = Ea = 100v = 4 amp

R2

R2

25Ω

To find I3, you use the formula I3 = Ea

R3

I3 = Ea = 100v = 1 amp

R3 100Ω

To find I4, you would use the formula I4 = ______________

To find I5, you would use the formula I5 = ______________

Solution to Frame 94

The diagram below shows that It (total current) flowing into

Ea

R4

the branches is the (sum/difference) of the current in each

branch.

Ea

R5

MD0903

1-31

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