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2 years ago

The current in a radio measures 12 amps. The resistance of the radio is 4 ohms. What is the voltage?

2 answers:

6 0

As per ohm's law we can say that voltage across the ends of a resistor is always product of the resistance with current flows through it.

So we can write

$V = i*R$

given that

i = 12 A

R = 4 ohm

now we can say from the above formula

$V = 4 * 12$

$V = 48 Volts$

alexgriva [62]2 years ago

5 0

Voltage = current * resistance
Voltage = 12 * 4
Voltage = 48V

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3 years ago

What are two things that are infinite?

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Answer:

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2 years ago

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We shall consider two properties:
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2. Thermal conductivity of the material

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3 years ago

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The answer is letter b

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3 years ago

In an intergalactic competition, spaceship pilots compete to see who can cover the distance between two asteroids in the short-

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a) truc is C, b) correct result is the B

Explanation:

As the speed of the competition is very high, for the judges the speed is

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v = 1.5 108 m / s

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For the time t = to γ

For distance L = Lo / γ

γ = √ (1-v2 / c2)

Own time and distance (to and Lo) corresponds to the observer who is not moving the judges in this case

Let's look for the range value

γ = 1 / √ (1 - (1.5 / 3) 2) = 1 / 0.866 = 1.15

The time t = 20 1.15 = 23 s

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From these results we see that time increases and the distance is shorter.

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3 years ago