A complete circuit contains two parall-connected devices and agenerator for prov

Question

A complete circuit contains two parall-connected devices and agenerator for providing the electromotive force. The resistance ofthe first device is 12 ohms, the resistance of the second device is4 ohms, and the voltage developed by the generator is 40 V. What isthe magnitude of the current flowing through the firstdevice? (a) 3.33A                   (c) 10 A (b) 8A                        (d) 13.32 A A complete circuit contains two parall-connected devices and agenerator for providing the electromotive force. The resistance ofthe first device is 12 ohms, the resistance of the second device is4 ohms, and the voltage developed by the generator is 40 V. What isthe magnitude of the current flowing through the firstdevice? (a) 3.33A                   (c) 10 A (b) 8A                        (d) 13.32 A

Explanation / Answer

A completecircuit contains two parallel-connected devices and a generator forproviding the
electromotive force. The resistance of the first device is 12 ohms,the resistance of the second
device is 4 ohms, and the voltage developed by the generator is 40V. What is the magnitude
of the current flowing through the firstdevice? (a)3.33 A  = (E)/(R1) = (40V)/(12 Ohms) = 3.33A
(b) 8A                       
(c) 10 A
(d) 13.32 A

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