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Consider an interface between two di-electric
materials, one with er = 2 while the others have er =
5. If the tangential component of the electric field
on one side of the interface has a magnitude of 20
Vm-1. What is the magnitude of the tangential
component of the electric field on the other side is?
1. 10 Vm¹¹
2. 20 Vm¹
3. 2 Vm¹
4.
5 Vm¹

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