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A 10 amp fuse is connected in series to 4 identical 5 ohm resistors in parallel with each other. What is the maximum size battery that could be connected without blowing the fuse?

2 answers

Rt = 5/4 = 1.25 Ohms.
Vmax = I*Rt = 10 * 1.25 = 12.5 Volts.

Thanks Henry

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