Two parallel infinite wires separated by ‘d’ carrying currents I1 I2. Find the distance of third infinite long wire kept parallel to both wires so that it can stay in equilibrium - (X = ?)

Question

Two parallel infinite wires separated by ‘d’ carrying currents I1 I2. Find the distance of third infinite long wire kept parallel to both wires so that it can stay in equilibrium - (X = ?) (A) (I2/I2 -I1) d (B) (I1/I2 + I1) d (C) ( 2 I2/I2 -I1) d (D) ( I2/I2 -I1) d

Tardigrade Admin · Accepted Answer

Correct answer is (b) (I1/I2 + I1) d

Q. Two parallel infinite wires separated by ‘d’ carrying currents $I_{1}$ & $I_{2}$ . Find the distance of third infinite long wire kept parallel to both wires so that it can stay in equilibrium - (X = ?)

$\frac{I _{2}}{I _{2} - I _{1}} d$

$\frac{I _{1}}{I _{2} + I _{1}} d$

$\frac{2 I _{2}}{I _{2} - I _{1}} d$

$\frac{I _{2}}{I _{2} - I _{1}} d$

Correct answer is (b) $\frac{I _{1}}{I _{2} + I _{1}} d$

Q. Two parallel infinite wires separated by ‘d’ carrying currents I1​ & I2​. Find the distance of third infinite long wire kept parallel to both wires so that it can stay in equilibrium - (X = ?)

I2​−I1​I2​​d

I2​+I1​I1​​d

I2​−I1​2I2​​d

I2​−I1​I2​​d

Correct answer is (b) I2​+I1​I1​​d

Q. Two parallel infinite wires separated by ‘d’ carrying currents $I_{1}$ & $I_{2}$ . Find the distance of third infinite long wire kept parallel to both wires so that it can stay in equilibrium - (X = ?)

$\frac{I _{2}}{I _{2} - I _{1}} d$

$\frac{I _{1}}{I _{2} + I _{1}} d$

$\frac{2 I _{2}}{I _{2} - I _{1}} d$

$\frac{I _{2}}{I _{2} - I _{1}} d$

Correct answer is (b) $\frac{I _{1}}{I _{2} + I _{1}} d$