TS EAMCET 14-Sep-2020 Shift 2 Solved Paper

The given situation is shown in the following figureMagnetic field at point P due to the wire having current I is given as
BI=‌

µ0

2π

⋅‌

I

x+y

(downward)
Magnetic field at point P due to the wire having current i is given as
Bi=‌

µ0

2π

⋅‌

i

y

(upward)
According to question, net magnetic field at point P is zero, hence
BI=Bi⇒‌

µ0

2π

⋅‌

I

x+y

=‌

µ0

2π

⋅‌

i

y

⇒‌

I

x+y

=‌

i

y

⇒i=I(‌

y

x+y

)