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| Continuous Charge Distribution
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| We have so far dealt with discrete charges but a system of charges can be considered as a continuous distribution if the group of charges are located very close together. To find the electric field due to a continuous charge distribution we have to define the following terms. |
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Let a charge q be uniformly distributed along a length l, then the linear  |
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| SI unit of linear charge is C/m. |
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| Suppose a charge q is uniformly distributed over a surface of area A. |
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| Then the surface density s defined as the charge per unit area. |
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| SI unit of s is C/m2. |
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