How does removing a bulb in a series circuit affect the flow of electricity?
This is because each lamp uses part of the electric energy flowing through the circuit.
Do this by using a screw driver to loosen one of the screws on the lamp holder. Connect one of the wires from the the battery holder to the lamp holder. When the lamp holders are connected to the battery, both bulbs glow, but not as brightly as when only one bulb was used. Use wire cutters to strip about 1/2 inch (1.25 cm) of insulation off each end of the wires connected to the battery holder. Use this wire to connect two lamp holders as shown. Using the wire cutters, strip off the insulation at the ends of the 4-inch wire. Hold the other wire from the battery holder so that its metal end touches the screw on the opposite side of the lamp holder. Wrap the metal end of the wire around the screw, and then tighten the screw to hold the wire in place.Ĥ. Use wire cutters to strip about 1/2 inch (1.25 cm) of insulation off each end of the wires connected to the battery holder.ģ. Touching the wires will not shock you, but if the battery is connected for an extended period, the wires will get hot and can burn your fingers.Ģ. RadioShack 1.2V 250mA Incandescent Bulbs (2-Pack)3.99 RadioShack 14V 200mA Incandescent Flashlight Bulb (2-Pack) 3.29 RadioShack 12V 75mA Incandescent Flashlight Bulbs (2-Pack) 3. Screw driver (type that fits terminal screws on lamp holder)Ĭaution: Do not use an electric source other than the one C battery and disconnect the battery after about 5 seconds. Size C battery, 2 flashlight lamps with screw base, “C” battery holder with color-coded wire leads, 2 flashlight lamp holders with screw base, 4-inch (10-cm) strip of 20-gauge insulated single strand wire, wire cutters, The materials needed for this investigation can be purchased at an electronics store, such as Radio Shack. Try different sized balloons.What affect does the number of bulbs in a series have on the brightness of each bulb? Does adding salt to the balloon have any noticeable effect on the experiment? Try the hair of different friends. Try this easy balloon experiment with a medical glove. When these electrical charges move around in the bulb, they bump into chemicals in the lightbulb and create light. As you move the balloon, the electrical charges in the lightbulb move to try and connect with the electrical charges on the balloon. The CFL bulb also contains electrical charges and these are attracted to the electrical charges on the balloon. Your hair imparted electrical charges called static electricity onto the balloon when rubbed against your hair.
In this fun and easy science experiment, we’re going to show you how to use a balloon to power a lightbulb.