physics
posted by nitz .
Three similar ideal cells (no internal resistances) supply current of 0.5 Ampere to a 10 Ohms resistor when they are in the parallel.How much current will they supply to the same risistor when they are connected in series aiding?

physics 
Henry
E=I*R = 0.5 * 10=5 Volts, each battery.
I = E/R = 15/10 = 1.5 Amps.
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