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Two point charge Q(a) and Q(b) are posit...

Two point charge `Q_(a)` and `Q_(b)` are positional at point A and B. The field strength to the right of charge `Q_(b)` on the line that passes through the two charges varies according to a law represented schematically in fig. (without employing a definite scale). The field strength is assumed to be positive if its direction coincides with the positive direction of the x-axis. The distance between the charges is `l=21 cm`.

(a) Find the sign of the charges.
(b) Find the ratio between the absolute value of charge `Q_(a)` and `Q_(b)`.
(c ) Find the coordinate x of the point where the field strength is maximum.

A

`Q_(1)` is positive charge while `Q_(2)` is negative charge

B

The ratio of the absoulte value of the charges `|(Q_(1))/(Q_(2))|((a+l)/(a))^(2)`

C

The value of b, where the field intensity is maximum is `b = (l)/(((l + a)/(2a))^(2//3)-1)`

D

The value of b , where the filed intesity is maximum is

Text Solution

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The correct Answer is:
A, B, D
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