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pychu [463]
3 years ago
14

Two identical resistors connected in series have an equivalent resistance of 4 ohms. The same two resistors, when connected in p

arallel, have an equivalent resistance of:
Physics
1 answer:
irina1246 [14]3 years ago
4 0

Answer:

1 ohm

Explanation:

since there are two identical resistors, one resistor will be

R = \frac{4}{2} =2ohm [ proven as in series R_{e} = 2 + 2 = 4ohm ]

to calculate the equivalent resistance when in parallel:

\frac{1}{R_{e} }  = \frac{1}{R_{1} } + \frac{1}{R_{2}}

so,

\frac{1}{R_{e} } = \frac{1}{2} + \frac{1}{2}

R_{e} = 1ohm

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A hydraulic press has one piston of diameter 4.0 cm and the other piston of diameter 8.0 cm. What force must be applied to the s
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Explanation:

From the question we are told that

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Generally the first area is  

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The  second area is  

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