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elena-s [515]
3 years ago
5

What is the current in a series circuit that has two resistors (4.0 ohms and 7.5 ohms) and a power source of 9.0 volts?

Physics
2 answers:
Olin [163]3 years ago
3 0

-- First, we have to decide how to handle the two resistors.

The effective resistance of resistors in series is the sum
of their individual resistances.  That is, they act like a single
resistor, whose resistance is the sum of all of them.

So in this question, the 4.0 ohms and the 7.5 ohms act like a
single resistor of 11.5 ohms.

-- The current in the circuit is

                       (the supply voltage) / (the total resistance)

                   =                (9.0 volts)  /  (11.5 ohms)

                   =                      0.783... Ampere        (rounded)

hram777 [196]3 years ago
3 0

Answer choice 'D' for Plato users.

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miss Akunina [59]

Answer:

Option 2

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2 years ago
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krek1111 [17]

Answer:

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2 years ago
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Which of think following materials is the best is the best choice for an insulating material?
RSB [31]
You are correct, the answer is C. 

Good insulators are materials that do not allow heat, electricity, light or sound pass through easily. Materials like steel and silver (which are metals) are not good insulators because they make good conductors. They easily allow heat, electricity and the like pass through them. 

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7 0
3 years ago
I believe that our solar system formed by the same process as star formation. A huge cloud of dust and gas collapsed and condens
Anuta_ua [19.1K]

The correct answer:

nebular theory

The explanation:

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-the Big bang theory is about the origin of the universe

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8 0
3 years ago
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mr Goodwill [35]

Answer:

technician A.

Explanation:

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5 0
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