3 years ago

What is the difference between electric potential and potential energy explain briefly

Physics

1 answer:

jarptica [38.1K]3 years ago

6 0

Answer:

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Which of the following examples describes an increase in potential energy?

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It is desired to construct a solenoid that will have a resistance of 4.10 Ω (at 20°C) and produce a magnetic field of 4.00 ✕ 10^

Nikolay [14]

Answer:

Part a)

$N = 754 turns$

Part b)

$L = 0.376 m$

Explanation:

Resistance of the solenoid is given as

R = 4.10 ohm

now we have

$R = \rho \frac{L}{A}$

here we know that

$\rho = 1.7 \times 10^{-8} ohm-m$

$A = \pi r^2 = \pi (\frac{0.5 \times 10^{-3}}{2})^2$

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now from above formula

$4.10 = (1.7 \times 10^{-8})\frac{L}{1.96 \times 10^{-7}}$

$L = 47.35 m$

Part a)

now we know that it is wounded over the solenoid

so here we can say

$N(2\pi R) = L$

$N(2 \pi (0.01)) = 47.35$

$N = 754 turns$

Part b)

now length of solenoid is given as

$L = N(diameter\: of\: the\: wire)$

$L = 754(0.5 \times 10^{-3})$

$L = 0.376 m$

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Why is zinc chloride a substance and not a mixture

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The electric field strength at a point in space a fixed (known) distance from a point charge source is 5000 N/C. How does the fi

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Answer:

See explanation

Explanation:

Electric field strength;

E = kq/d^2

k= coulombs constant

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d = distance if separation

d is constant

q = 2q

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E = 2 kq/d^2

Hence, the electric field strength will double.

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