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Comparisons: Gravitational and Electric Fields
Similarities:

Gravitational property Electrical property
For the force to act... Contact not needed ­ force Contact not needed ­ force
acts at a distance acts at a distance
Range of field Infinite ­ size of force Infinite ­ size of force
decreases as distance decreases…

Page 2

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Differences:

Gravitational Property Electrical Property
Origin Produced by and act upon Produced by and acts upon
masses charge
Effect Causes attraction only Can cause attraction or
repulsion
Shielding Not possible ­ no material has Possible ­ shielding possible
been found that is able to using devices such as Faraday
shield…

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