Charging Pith balls. Explain this.

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H) Field Intensity and Distance


1) Spherical point charge




Field intensity varies
 with the square of distance




Double distance from charge,

the field intensity ....





is quartered




2. Charged Rod - the field intensity varies inversely with distance


If the distance to the rod is reduced to 1/3 its original distance, the electric field intensity ...




would be 3 times greater




Electric Field Strength and distance

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