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Usimov [2.4K]
3 years ago
6

PLEASE HELP ME How does electricity flow? from low potential to high potential from high potential to low potential from series

circuit to parallel circuit from conductor to insulator
Physics
1 answer:
Svetlanka [38]3 years ago
4 0

The correct answer of this question is : From high potential to low potential.

EXPLANATION :

Before going to answer this question, first we have to understand the conventional rule for current flow.

As per the conventional rule of electricity, the current direction is opposite to the direction of electronic motion.

The current flows through a conductor is due to the motion of the free electrons. When the conductor or wire is attached to any electric source, the electrons are drifted towards the positive terminal of the source. Hence, electrons are moving from negative terminal to positive terminal.

As per the conventional rule, the current direction will be from positive terminal towards negative terminal i.e from higher potential to lower potential.

Hence, the correct answer of this question is from higher potential to lower potential .

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An isolated conducting sphere has a 17 cm radius. One wire carries a current of 1.0000020 A into it. Another wire carries a curr
notsponge [240]

14 ms is required to reach the potential of 1500 V.

<u>Explanation:</u>

The current is measured as the amount of charge traveling per unit time. So the charge of electrons required for each current is determined as the product of current with time.

       Charge = Current \times Time

As two different current is passing at two different times, the net charge will be the different in current.  So,

        \text { Charge }=(1.0000020-1.0000000) \times t=2 \times 10^{-6} \times t

The electric voltage on the surface of cylinder can be obtained as the ratio of charge to the radius of the cylinder.

        V=\frac{k q}{R}

Here k = 9 * 10^9, q is the charge and R is the radius. As q=2 \times 10^{-6} \times t and R =17 cm = 0.17 m, then the voltage will be

        V=\frac{9 \times 10^{9} \times 2 \times 10^{-6} \times t}{0.17}

The time is required to find to reach the voltage of 1500 V, so

1500 =\frac{9 \times 10^{9} \times 2 \times 10^{-6} \times t}{0.17}

\begin{aligned}&t=\frac{1500 \times 0.17}{\left(9 \times 10^{9} \times 2 \times 10^{-6}\right)}\\&t=14.1666 \times 10^{-3} s=14\ \mathrm{ms}\end{aligned}

So, 14 ms is required to reach the potential of 1500 V.

3 0
3 years ago
Two students below described a part of Earth's innermost layer:
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The answer to your question is B- They both described the inner part otherwise known as the inner core.

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S To minimize neutron leakage from a reactor, the ratio of the surface area to the volume should be a minimum. For a given volum
goblinko [34]

To minimize neutron leakage from a reactor, the ratio of the surface area to the volume should be a minimum. For a given volume V ,  ratio for (c) a parallelepiped of dimensions × 2 a will be \frac{6.29961}{c^\frac{1}{3} }

What will be the ratio of surface area and the volume of the parallelepiped

We will proceed by stating the equations of the surface area and the volume of each shape, and then identifying each of the surface area and the volume, we will take their ratios, and as it is asking for the shape which has the minimum surface area to volume ratio, therefore at some given volume, V=const.

The parallelepiped whose dimension is given as

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the surface area and the volume is given respectively by:

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Hence the ratio is given by:

\frac{A}{V} =\frac{10a^{2}}{2a^{3}}=\frac{5}{a}

Calculating the constants, by substituting the value of a in (3), we get:

\frac{A}{V}=\frac{6.29961}{c^\frac{1}{3} }

To learn more about parallelepiped, refer to:

brainly.com/question/27975136

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5 0
1 year ago
28. Calculate the weight of a 1,789 kg car on the Earth.​
skad [1K]

Answer:

From the equation ΣF = ma, one can say that the mass is 1800 kg, and the acceleration of gravity is -9.8 meters. Multiply those together and it is -17640 newtons.

Explanation:

plz send a brainleast

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3 years ago
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