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Lina20 [59]
3 years ago
11

Why isn't Coulomb's law valid for dielectric objects, even if they are spherically symmetrical?

Physics
1 answer:
marshall27 [118]3 years ago
4 0

Answer:

Explanation:

The "traditional" form of Coulomb's law, explicitly the force between two point charges. To establish a similar relationship, you can use the integral form for a continuous charge distribution and calculate the field strength at a given point.

In the case of moving charges, we are in presence of a current, which generates magnetic effects that in turn exert force on moving charges, therefore, no longer can consider only the electrostatic force.

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A piece of wood has a volume of 4.6 cm to the power of 3, and a mass of 3.7 g what is the density of the wood
AysviL [449]

Density is given by:

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D = density, M = mass, V = volume

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Answer:

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2 years ago
A real power supply can be modeled as an ideal EMF of 60 Volts in series with an internal resistance. The voltage across the ter
lara31 [8.8K]

Answer:

5 ohms

Explanation:

Given:

EMF of the ideal battery (E) = 60 V

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Now, we know that, the voltage drop in the battery is given as:

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Therefore, the voltage across the terminals of the battery is given as:

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Now, rewriting in terms of 'r', we get:

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Plug in the given values and solve for 'r'. This gives,

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