Question

Three parallel wires are arranged in a square configuration as shown in the figure below. In two of the wires (blue), a 0 1 mA current flows towards you and the third wire(red) a 05 mA current flows away from you What is the strength of the magnetic field at point P? Oo 5.36 cm ​

Answer 1

Answer:

Explanation:

Correct option is

A

2

​πdμo​i2​

Magnetic field due to current carrying wire =2πdμ0​ I​

force due to magnetic per field on current-carrying wire per unit length

FB​1=2πdμ0​I2​

FB​2=2πdμo​I2​

Resultant = (2πdμo​I2​)2+(2πdμo​I2​)2

​=2

​πdμo​I2​