Since the current flow in the series circuit is the same throughout

the circuit, the value of current flowing through any resistor (IR1,

IR2, and IR3) is equal to the value of total current (It). The formula

which expresses this relation is

It = IR1 = IR2 = IR3

a. The total current in a series circuit is ____________ to the

current through any resistor in the circuit.

b. Select the formula used to express the relationship of

current throughout a series circuit.

A.

It + IR1 + IR3 = IR2

B.

It = IR1 + IR2 + IR3

C.

It = IR1 = IR2

=IR3 = ...

c. Match each symbol in column A with the function it represents

in column B.

A

B

________ (1)

It

a.

Current flow through R1.

________ (2)

Rt

b.

Total resistance.

________ (3)

IR1

c.

Total current.

________ (4)

ER3

d.

Voltage drop across R3.

d.

What is the definition of a series circuit?

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