A circle of radius 'a' has charge density given by lambda= lambda_(0)cos^(2)theta on its circumference. What will be the total charge on the circle ?

A circle of radius 'a' has charge density given by lambda= lambda_(0)c

1.	A circle of radius 'a' has charge density given by lambda= lambda_(0)cos^(2)theta on its circumference. What will be the total charge on the circle ?
Answer» `pia lambda_(0)` Zero `2pia` None of these SOLUTION :Total charge on CIRCLE `=int_(0)^(2pi)lambda a d theta` `=int_(0)^(2pi) COS^(2)theta d theta =alambda_(0)pi = pialambda_(0)`

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A circle of radius 'a' has charge density given by lambda= lambda_(0)cos^(2)theta on its circumference. What will be the total charge on the circle ?

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