Solution to Frame 56

In the circuit below, find: E1 = ____; E2 = ____; E3 = ____.

2 amps (Rt = 7 + 4 + 3

= 14Ω

Check: _____________.

I = Ea = 28 = 2 amps

Rt 14

E1 = I x R1 = 2 amp x

7Ω = 14v

E2 = I x R2= 2 amp x

4Ω = 8v

E3 = I x R3 = 2 amp x

3Ω = 6v

Yes, 28v = 28v

Solution to Frame 57

To summarize what you have learned about series circuits,

E1 = 20v

complete the statements below:

E2 = 12v

E3 = 8v

a. There is/are (only one/more than one) path for current to

flow.

Check:

Ea = Et

b. I (current) has (the same/a different) value(s) everywhere

in the circuit.

40v = 40v

d. To get Et, you (sum/subtract) the individual voltage drops.

e. Et and Ea (are/are not) the same.

f. To find I, you (must/must not) use Rt.

g. To find I, you (must/must not) use Et or Ea.

h. To find E1, use the formula __________

i. To find E3, use the formula ________________.

MD0903

1-20

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