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Posted by on Thursday, May 24, 2012 at 9:57pm.

current through a device is 0.30 A, and the resistance in the device is 40 Ù. How many 1.5 V batteries are required to run the device

  • physics - , Friday, May 25, 2012 at 3:36am

    I assume 40 Ù means 40 ohms.

    V = I*R = 0.30*40 = 12 volts

    That would require 12/1.5 = 8 1.5 volt batteries as the power supply.

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