T-Mobile 9:12 PM Find the net charge of a system consisting of 4.0 x 107 electro

Question

T-Mobile 9:12 PM Find the net charge of a system consisting of 4.0 x 107 electrons. 40008000x Your response differs significantly from the correct answer. Rework solution from the beginning and check each step carefully, C At what separation is the electrostatic force between a +18.0 point charge and a +29.1 HC point charge equal in magnitude to 2.56 N? Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. m The attractive electrostatic force between the point charges +8.53 x 106 and Q has a magnitude of 0.966 N when the separation between the charges is 0.92 m. Find the sign and magnitude of the charge Q Given that q 20 C and d . 11 cm, find the direction and magnitude of the net electrostatic force exerted on the point charge q1 in the figure below. Magnitude A flashlight bulb carries a current of 0.14 A for 70 s. How much charge flows through the bulb in this time? How many electrons flow through the bulb in this time? Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. The picture tube in a particular television draws a current of 13.1 A. How many electrons strike the viewing screen every second? electrons per second

Explanation / Answer

Answering since the question 14, then:

14)

Following the Ohm's Law

P = V^2/R

P = 685 Kw

15)

As the current flow across the three resistences, so:

Req = R1 + R2 + R3

Req = 168 ohm

16)

The minimun number of 66 ohm resistences is 3

17)

Following the omh's law,

V = I*R

a)

V = 78 v

b)

I1 = 1.56 A

I2 = 3.12 A

I3 = 0.45 A

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