o

Solution:

R = 10 Ohms

FIGURE 5.

DETERMINING RESISTANCE IN A BASIC CIRCUIT.

Therefore, resistance equals 10 Ohms for the circuit shown in figure 5.

Using the equation below and the circuit shown in figure 6 on the following

page, we will solve for the unknown E.

o

Formula:

E=IxR

o

Given:

I = 0.5 ampere

R = 45 Ohms

o

Solution:

E = 0.5 ampere x 45 Ohms

E = 22.5 volts

Therefore, voltage equals 22.5 volts for the circuit shown in figure 6.

The Ohm's law equation and its various forms may be obtained readily, with

the aid of figure 7 on page

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