Datasheet-1

Project 14

Series Circuit

Build the circuit, set the meter to the 1A setting, and turn on the

slide switch (S1). The three lamps (L4) are dimly lit, and the

meter measures the current.

The three lamps are connected in a series, and all the electric current from the bat-

teries flows through each component in the circuit. The lamps are dim because the

voltage from the batteries (B3) is divided between them.

Connecting parts in series is one way of arranging them in a circuit. The advantage

of it is that wiring them together is simple. The disadvantage is that if one lamp

breaks, all three will be off.

How would the current change if you replaced one of the

lamps with a 3-snap wire? (Try it.)

How would the current change if you replaced two of the

lamps with 3-snap wires? (Try it.)

How would the current change if you replaced one of the

lamps with the white LED (D6)? (Try it, oriented in both di-

rections.)

How will the circuit performance change if you re-arranged

the parts in the circuit? (Try it, but note that the meter and

battery holder only fit one way.)

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