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If a circle passes through the point (a,...

If a circle passes through the point (a, b) and cuts `x^2+y^2=4` orthogonally, then the locus of its centre is :

A

`2ax+2by+(a^2+b^2+4)=0`

B

`2ax+2by-(a^2+b^2+4)=0`

C

`2ax-2by+(a^2+b^2+4)=0`

D

`2ax-2by-(a^2+b^2+4)=0`

Text Solution

Verified by Experts

The correct Answer is:
B
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