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Lorico [155]
3 years ago
12

19. Find the current in a circuit if the power is 500 W (watts) and the resistance is 25 ohms. Round off your answer to two deci

mal places. Use the formula . A. 4.47 A B. 0.22 A C. 20 A D. 0.05 A
Mathematics
1 answer:
HACTEHA [7]3 years ago
4 0

Answer:

A

Step-by-step explanation:

The formula that relates current, power and resistance is

I=\sqrt{\frac{P}{R}}

Where

I is the current (in amperes)

P is the power (in watts)

R is the resistance (in ohms)

We know P = 500 and R = 25, we plug them into the formula and solve for I:

I=\sqrt{\frac{P}{R}}\\I=\sqrt{\frac{500}{25}}\\I=\sqrt{20}\\ I=4.47

Correct answer is 4.47 Amperes, or choice A.

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If f(x) = (5x^3 - 4)^4, then what is f '(x)?
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2.67 repeating as a fraction in simplified
maksim [4K]

Answer:

2.\overline {67}=\frac{265}{99}

Step-by-step explanation:

Given

2.\overline {67}

Let

x=2.\overline {67}

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  • 2.\overline {67}=\frac{265}{99}
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