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Two physics question need quick help

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User Kevin Mack
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1 Answer

4 votes

Answer:

2.14 kW, I₂ < I₁

Step-by-step explanation:

The three resistors are in parallel. The net resistance is:

1/R = 1/R₁ + 1/R₂ + 1/R₃

1/R = 1/20 + 1/8 + 1/500

1/R = 0.177

R = 5.65

The power is:

P = IV

P = (V/R) V

P = V²/R

P = (110)² / 5.65

P = 2140 W

P = 2.14 kW

For two resistors in parallel, the one with the higher resistance has the smaller current. I₂ < I₁.

User Felix Borzik
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