The electric field vector at point P(a, ...

The electric field vector at point `P(a, a, a)` due to three uniformly charged infinite wires 1, 2 and 3 kept the x, y and z - axes, respectively as shown in the shown in figure is (Charge unit length of each wire is `lambda`)

`(lambda)/(3pi epsilon_(0)a)(hati+hatj+hatk)`

`(lambda)/(2piepsilon_(0)a)(hati+hatj+hatk)`

`(lambda)/(2sqrt2 pi epsilon_(0)a)(hati+hatj+hatk)`

`(sqrt2 lambda)/(pi epsilon_(0)a)(hati+hatj+hatk)`

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