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July 6, 2015

Homework Help: Ap physics

Posted by Amelia on Friday, May 11, 2012 at 11:41am.

Four resistors are connected to a battery with a terminal voltage of 12.0 V, (R1 = 40.0 , R2 = 80.0 , R3 = 140.0 and R4 = 15.0 )


(a) Determine the equivalent resistance for the circuit.
1
(b) Determine the current in the battery.
2 V
(c) Determine the current in the 40.0 resistor.
3 A
(d) Determine the power dissipated by the 80.0 resistor.
4 W
(e) Determine the power dissipated by the 15.0 resistor.
5 W
(Hint: Remember that P= (V)2/R = IV.)
_ i dont understand how to do this at all??? HELP

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