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frutty [35]
3 years ago
13

What is the current in the 20.0 resistor?

Physics
2 answers:
Charra [1.4K]3 years ago
8 0
I=120 V/20 ohms
=6.0 A

SO the answer would be <span>A. 6.00 A</span>
Effectus [21]3 years ago
5 0

Answer:

6.00 A

Explanation:

You might be interested in
A long cylindrical insulating shell has an inner radius of a = 1.41 m and an outer radius of b = 1.67 m. The shell has a constan
Natasha2012 [34]

Answer:

a. E = 122.4 N/C

b. E = 58.2 N/C

c. E = 0

Explanation:

The electric field at an arbitrary point away from the axis of the cylinder can found by applying Gauss’ Law, which states that an electric flux through a closed surface is equal to the total charge enclosed by this surface divided by electric permittivity.

In order to apply this law, we have to draw an imaginary cylindrical surface of arbitrary height ‘h’ and radius ‘r’, which is equal to the point where the E-field is asked.

A. For the outside of the cylinder, we will draw our imaginary surface with r = 1.97.

E2\pi rh = \frac{\lambda V}{\epsilon_0} = \frac{\lambda \pi (b^2 - a^2)h}{\epsilon_0}\\E2\pi (1.97)h = \frac{(5.3\times 10^{-9})\pi(1.67^2 - 1.41^2)h}{\epsilon_0}\\E = 122.4~N/C

B. This time our imaginary surface should be inside the cylinder, therefore the enclosed charge will be less than that of part A.

E2\pi rh = \frac{\lambda V_{enc}}{\epsilon_0} = \frac{\lambda \pi (r^2 - a^2}h{\epsilon_0}\\E2\pi (1.51)h = \frac{5.3\times 10^{-9})\pi(1.51^2 - 1.41^2)h}{\epsilon_0}\\E = 58.2~N/C

C. In this case our imaginary surface will be inside the cylinder, where there is no charge at all. Therefore, the enclosed charge will be zero and the electric field will be zero.

6 0
3 years ago
Liquid helium has a temperature of 4k what is the temperature on celsius and fahrenheit
lesya692 [45]

Answer:

Explanation:

4K

°C = K - 273

= 4 - 273

= - 269 °C

° F = 9/5 (K - 273) + 32

= 9/5 × (4 - 273) + 32

= 1.8(-269) + 32

= - 487.4. + 32

= -455.4 °F

8 0
3 years ago
According to Boyle's law, for a fixed quantity of gas at a given temperature, what quantity relating pressure P and volume V is
kvasek [131]

Answer:

PV = k

Explanation:

Boyles law states that the pressure P of a fixed mass of gas is inversely proportional to its volume V provided that the temperature T is constant (i.e does not vary).

Mathematically, boyle's law can be expressed as;

P = k/V where k us the constant of proportionality. From the equation;

PV = k which is also equivalent to;

P1V1 = P2V2 = PnVn

P1, P2... Pn are the values of the pressures

V1, V2...Vn are the values of the volumes

7 0
3 years ago
Why there are electric vehicles in the world​
sergejj [24]

Explanation:

to go fast from to one place to another

3 0
3 years ago
What term describes how far an object moves in a certain amount of time
stepan [7]

Answer:

1. Speed

Explanation:

"how far an object moves in a certain amount of time"

"how far an object moves"- <em>distance</em>

"In a " - <em>over</em>

"certain amount of time" - <em>time</em>

<em>Distance over time is speed. </em>

The speed of an object is the distance the object travels in one unit of time.

<em>Hope I Helped, Feel free to ask any questions to clarify :)</em>

<em>Have great day!</em>

<em>            -Aadi x</em>

8 0
3 years ago
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