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I I L Two long current carrying thin wires, both with current I, are held by insulating threads of length L and are in equilibrium as shown in the figure, with threads making an angle ' θ ' with the vertical. If wires have mass λ per unit length then the value of I is : (g = gravitational acceleration)

1. sin θ θ πλ cos μ gL 0
2. 2sin θ θ πλ cos μ gL 0
3. 2 θ π tan μ gL 0
4. θ πλ tan μ gL 0

Correct answer: 2sin θ θ πλ cos μ gL 0

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