ELECTRICITY AND MAGNETISM - ELECTROMAGNETIC INDUCTION - TRANSFORMERS	NC State University Faculty Access
Previous Next Reaction of Secondary on Primary # 5K30.60
Description: A light bulb is in series with the primary of a transformer. As the resistance across the secondary of the transformer is increased, the current through the primary decreases. The amount of current flowing through the primary is illustrated the intensity of light bulb and in this case it does not glow as brightly. Purchased/Built: built Setup Time: none Quant. in Demo Room: 1 Demo References Sutton E-241 Connect a 100 W lamp in series with the primary and increase the load on the secondary to light the lamp. Freier and Anderson Em-2 A light bulb in series with the primary brightens as the load on the secondary increases.
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