Solution to Frame 56
In the circuit below, find: E1 = ____; E2 = ____; E3 = ____.
2 amps (Rt = 7 + 4 + 3
I = Ea = 28 = 2 amps
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
Ea = Et
b. I (current) has (the same/a different) value(s) everywhere
in the circuit.
40v = 40v
c. To get Rt, you (sum/subtract) the individual resistances.
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 ________________.