Answer :
The strength of the magnetic field is 4x10^-2 T
What is Magnetic Field?
A magnetic field is a vector field that describes the magnetic influence on moving charges, currents, and magnetic materials. A moving charge in a magnetic field is subjected to a force that is perpendicular to both its own velocity and the magnetic field.
Magnetic field at O due to wire 1, B1 = UoI1/2pid;
where d = 5 cm
B1 = u0(10)/2pi(5)
Magnetic field at O due to wire 2,
B2 = uo I2/2pid
B2 = u0(5)/2pi(5)
The net magnetic field at O Bo = B2-B1
uo(10-5)/2pi(5)
B0 = (4pi x10^-7)(5)/2pi(5)
= 4x10^-2 T.
Therefore the answer is 4x10^-2 T
To learn more about Mangnetic field from the given link
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