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lecture36 - Re w 2 vie Example 1 How doe thee ctric fie...

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Example 1 How does the electric field vary with distance for: a) a point charge b) a charged wire c) an infinite charged sheet
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Example 2 Two concentric imaginary spherical surfaces of radius R and 2R respectively surround a positive point charge Q located at the center of the surfaces. When compared to the electric flux Ф through the surface of radius R, the electric flux through the surface of radius 2R is: A) ¼ Ф B) ½ Ф C) Ф D) 2 Ф
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Example 3 An uncharged spherical conducting shell surrounds a point charge – q at its centre. Then a charge +3q is placed on the outside surface of the shell. When static equilibrium of the charges on the shell is reached, the charges on the inner and outer surfaces of the shell are respectively: A) –q and 4q B) –q and 2q C) +q and 4q D) +q and 2q
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Two parallel conducting plates in a vacuum carry equal and opposite charges. When a dielectric is inserted between the plates, the potential difference between the plates: A) Decreases. B) Increases.
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