Power supply :
Series connection: 
Parallel connection:
What is the best way to ensure that a 40 watt bulb and a 60 watt bulb have the same current within them?
A. Connect the bulbs in series with the power supply
B. Connect the bulbs in parallel with the power supply
C. It can't be done; different wattage bulbs must always have different currents
Answer: A
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