the maximum number of volts,E, that can be placed across a resistor is given by the formula E=sq root PR, where P is the number of watts of power that the resistor can absorb and R is the resistance of the resistor in ohms. find Eif P=1/8 watts and R= 12800 ohms
A20 volts
B. 40 volts
C. 1600 volts
D. 80 volts
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OpenStudy (campbell_st):
just substitute your given values
\[E = \sqrt{\frac{1}{8} \times 2800}\]
and evaluate
OpenStudy (anonymous):
E = sqrt(PR) which is\[E = \sqrt{PR}\]Just multiply P by R first, then take square root.
OpenStudy (anonymous):
"1" in front of the "2800"
OpenStudy (anonymous):
i have tried everythign nothign is coming close to the answer
OpenStudy (campbell_st):
sorry for the typo try
\[E = \sqrt{\frac{1}{8} \times 12800}\]
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OpenStudy (campbell_st):
the answer is in the list.
OpenStudy (anonymous):
ok trying again
OpenStudy (anonymous):
the answer 40
OpenStudy (campbell_st):
thats what i got
OpenStudy (anonymous):
thank you
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OpenStudy (anonymous):
there were 3 problems out of 75 i could not find two left