Solution to Frame 42

Find I in the circuit below:

3 amp

Ea = 27v = 3 amp

I = __________________

Rt 9Ω

drop at side resistor =

12 v.

drop at bottom resistor

=9v

Solution to Frame 43

So far you have learned that in a series circuit:

8 amp

It = Et = 80v_ = 8 amp

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

Rt 10Ω

to flow.

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

in the circuit

c. To get Rt, you (sum/subtract) the individual voltage

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 either Et or Ea.

Solution to Frame 44

The statement "The greater the resistance, the greater the

a. only one

voltage drop" does not tell you how to calculate the exact

b. the same

voltage drop. However, Ohm's law does allow you to

c. sum

_______________________________________.

d. sum

e. are

f. must

g. must

MD0903

1-15

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