- #1
TheDanny
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Homework Statement
Given a 24VDC Generator, a 12VDC Battery(Discharged), a bulb(no rating yet), pieces of thick wires(unlimited length you can use)
You need the 24VDC generator to charge the 12VDC battery, but direct will damage the battery. What should I do with the bulb? I need to build a circuit to charge the battery with 24v generator and a bulb is used and what is the rating of the bulb?
The Attempt at a Solution
I tried to fix it parallel but the voltage will be still the same to the battery. What other solution? in figure A.
Figure B. Is the bulb going to light up with both battery same rating 1.5VDC and different rating with 1.5VDC and 4.5VDC.
[PLAIN]http://img837.imageshack.us/img837/3183/63973231.jpg
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