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coldgirl [10]
2 years ago
10

Been stuck on this for a while man...

Mathematics
1 answer:
sesenic [268]2 years ago
7 0

Answer:

2)y=6

4)36=a

Step-by-step explanation:

8y=48

/8    /8

y=6

18=a/2

*2    *2

36=a

You wanna get x by itself

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The total resistance R of two resistors connected in parallel circuit is given by 1/R = 1/R_1 + 1/R_2. Approximate the change in
Naily [24]

Answer:

a) Approximate the change in R is 0.5 ohm.

b) The actual change in R is 0.04 ohm.

Step-by-step explanation:

Given : The total resistance R of two resistors connected in parallel circuit is given by \frac{1}{R}=\frac{1}{R_1}+\frac{1}{R_2}

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Solution :

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R_2 is increased from 10 ohms to 11 ohms.

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\frac{1}{\triangle R}=\frac{\triangle R_2+\triangle R_1}{(\triangle R_1)(\triangle R_2)}

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\frac{1}{R}=\frac{1}{R_1}+\frac{1}{R_2}

\frac{1}{R}=\frac{1}{12}+\frac{1}{10}

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When resistances are charged, R_1=R_2=11

\frac{1}{R'}=\frac{1}{R_1}+\frac{1}{R_2}

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