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2 years ago

Consider two solid spheres of radius R with uniformly distributed charge throughout their volumes. Point

Physics

1 answer:

8090 [49]2 years ago

4 0

The ratio of the total charge on the charges, Q2/Q1 is; 9

<h3>Electric field and Total Charge</h3>

The electric field due to a charge is directly proportional to its magnitude and inversely proportional to the square of the distance to such point;

Since, E1 = E2, it follows that;

Q1/(d1)² = Q2/(d2)²

Where, d1 = 0.5 and d2 = 1.5

Q1/(0.5)² = Q2/(1.5)²

Q1/0.25 = Q2/2.25

Hence, Q2/Q1 = 2.25/0.25

Q2/Q1 = 9.

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How much energy is stored in a 2.80-cm-diameter, 14.0-cm-long solenoid that has 200 turns of wire and carries a current of 0.800

ozzi

Answer:

The energy stored in the solenoid is 7.078 x 10⁻⁵ J

Explanation:

Given;

diameter of the solenoid, d = 2.80 cm

radius of the solenoid, r = d/2 = 1.4 cm

length of the solenoid, L = 14 cm = 0.14 m

number of turns, N = 200 turns

current in the solenoid, I = 0.8 A

The cross sectional area of the solenoid is given as;

$A = \pi r^2\\\\A = \pi (0.014)^2\\\\A = 6.16*10^{-4} \ m^2$

The inductance of the solenoid is given by;

$L = \frac{\mu_0 N^2A}{l} \\\\L = \frac{(4\pi*10^{-7})(200^2)(6.16*10^{-4})}{0.14}\\\\L = 2.212*10^{-4} \ H$

The energy stored in the solenoid is given by;

E = ¹/₂LI²

E = ¹/₂(2.212 x 10⁻⁴)(0.8)²

E = 7.078 x 10⁻⁵ J

Therefore, the energy stored in the solenoid is 7.078 x 10⁻⁵ J

8 0

3 years ago

1. What is meant by half-life?

Bezzdna [24]

1. The time for a radioactive sample to reduce to half of its original mass.
4. 10% of 232 is 23.2 times 6 equals 139.2
68.9 x6 equals 413.4
5. 0.37kg
6. 2000 years
7. 6.84 seconds

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3 years ago

An unknown galaxy has a large flattened core. Which of the following classifications would best fit this galaxy's description? I

Alja [10]

Answer:

Spiral

i know it is so dont say nun people

Explanation:

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3 years ago

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