q2 4- Design problem Your are designing a Christmas tree light set, to be strung

ID: 1814432 • Letter: Q

Question

4- Design problem

Your are designing a Christmas tree light set, to be strung on a tree in your

backyard, that will operate from a 12-V battery. The heavy-duty rechargeable

battery you selected can provide a continuous 9A of current at 12 V for a 4-hour

period of operation each night before being completely drained. Design a set of

lights that are configured in a parallel arrangement that will match the

performance specifications of your battery. The resistance of each bulb is 12 ?.

Design for the case of the maximum number of lights(round the number of lights

to an integer with the overall duration being at least 4 hours).

current in each light = 12V/12ohm = 1A

so we can put 9 lights in parrallel so total current will be 9A from the battery.

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