A long straight wire carrying a current of 10 A is placed perpendicular to a uniform magnetic field of strength `1.0 xx 10^(-4)` tesla as shown. The resultant field strength at H or L in magnitude at distance 10 cm from O is

`0.8 xx 10^(-4) T`
`1.02 xx 10^(-4) T`
`1.44 xx 10^(-4) T`
`1.04 xx 10^(-4) T`