Find voltage, current, & power through the resistor, Current=5/4700? Voltage=(5/
ID: 1524516 • Letter: F
Question
Find voltage, current, & power through the resistor,Current=5/4700? Voltage=(5/4700)4700? Power=25/4700? 4.7km 5 V Figure 1. Circuit with a voltage source and resiste 1.a (3 points): Use passive sign convention to determin numerical value of the voltage across the resistor. 1.b (3 points): Use passive sign convention and Ohm's determine the numerical value of the current for the resis 1.c (3 points): Use passive sign convention to determine numerical value of the power for the resistor. 1.d (3 points): Use passive sign convention to determin numerical value of the power for the source. 1 e (3 points): Using your results from 1.c and 1.d, whi absorbs power and which device supplies power. Grading Rubric points Correct numerical value of points): Correct numerical value of (3 points): Correct numerical value of
Explanation / Answer
a) Voltage across the resistor = 5 V
b) Use Ohm's law
V = I*R
==> I = V/R
= 5/4700 A
c)Power dissipated at resistor, P = I^2*R
= (5/4700)^2*4700
= 5^2/4700 W
= 25/4700 W
d) Power delivered by the battery = V*I
= 5*(5/4700)
= 25/4700 W
e) Power is oborbed by resistor and delivered by battery.
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