Electrostatic forces are similar to gravitational forces in that they both conform to the distance squared law and are proportional to the properties of the two actors in the interaction (in terms of electrical forces, the charges of the two point charges; and in gravitational, the masses of the two bodies). However, though their interactions looks similar the greatest difference is their strengths. The constant of scale for electrostatic forces (Coulomb's constant) is about 9 x 109 in magnitude, whereas the constant of scale for gravitational force (gravitational constant) is about 6.67 x 10-11 in magnitude. Therefore, the electrostatic force scales much faster than gravitational force. Therefore, it is common to see large objects such as the earth exert a tiny force with respect its size, while a small charged Styrofoam ball can push another with relative ease.
Regarding their relative strength, this is the example I always like to give:
You've got some bits of tissue on the table. You run a rubber comb through your
hair and pass it over the bits of tissue. They jump up off the table to the comb.
The gravitational force of the whole Earth is pulling them down, and the electrostatic
force of a charged pocket comb is pulling them up. And the comb wins.
Compared to the gravitational force between a pair of 1-kilogram masses, the
electric force between a pair of 1-coulomb charges the same distance apart is
about 10,000,000,000,000,000,000,000,000,000,000,000,000,000 times as strong.
As my freshman Physics prof used to tell us: If every kilogram of mass in the Earth
and your body were coulombs of charge instead, then when you slipped on the ice,
you'd fall down, just as you do now, but you'd fall 1040 harder.
The strong force (The strongest force) is a hundred times stronger the the the electromagnetic one, just that the strong force has a smaller range that only affects the binding of quarks.
Electricity has electric fields. Magnets have magnetic fields.
20 m
Gravitational force.
The larger the mass, the stronger the gravitational force.
gravitation only attracts, while electrical forces attract when the electrical charges are opposite and repel if the charges are similar. Thus, gravitation is considered a monopole force, while electrostatics is a dipole force. However, the concept of dark energy, which seem
The strength of the gravitational force of attraction between two objects is proportional to both masses.
-- Electrical force only cares about the charge on two objects, and ignores their mass. Gravitational force only cares about the mass of two objects, and ignores their charge. -- Electrical force can be attractive or repulsive. Gravitational force can only be attractive.
Gravitational force.
The larger the mass, the stronger the gravitational force.
The larger the mass, the stronger the gravitational force.
The greater the mass, the greater the gravitational force.
In case of electric force there are both repulsive and attractive. But in case of gravitational force, only attractive force. Electrical force between electric charges. Gravitational force between masses. In electric force we use a constant known as permittivity of the medium. But in gravitational force a universal constant known as Gravitational constant is used. Electrical force is very much greater than gravitational force.
by dancing
Gravity and electromagnetism can be compared and contrasted. Both are fundamental forces in nature, but gravity is a long-range force that acts on all masses, while electromagnetism is a combination of electric and magnetic forces that act on charged particles at both short and long ranges. Additionally, gravity is always attractive and weak in comparison to electromagnetism, which can be attractive or repulsive and is much stronger.
Electrical can either attract or repel - gravity can only attract.
gravitation only attracts, while electrical forces attract when the electrical charges are opposite and repel if the charges are similar. Thus, gravitation is considered a monopole force, while electrostatics is a dipole force. However, the concept of dark energy, which seem
The strength of the gravitational force of attraction between two objects is proportional to both masses.
-- Electrical force only cares about the charge on two objects, and ignores their mass. Gravitational force only cares about the mass of two objects, and ignores their charge. -- Electrical force can be attractive or repulsive. Gravitational force can only be attractive.
The electrical field force acts between two charges, in the same way that the gravitational field force acts between two masses.