In a moving-coil galvanometer, two coils M₁ and M₂ have: R₁ = 5 Ω, N₁ = 15, A₁ = 3.6×10⁻³ m², B₁ = 0.25 T; and R₂ = 7 Ω, N₂ = 21, A₂ = 1.8×10⁻³ m², B₂ = 0.50 T. If the torsional constants are equal, the ratio of voltage sensitivities of M₁ and M₂ is:
Physics · Magnetic effect of current · mabnetic moment and torque on current carring loop in magnetic field
In a moving-coil galvanometer, two coils M₁ and M₂ have: R₁ = 5 Ω, N₁ = 15, A₁ = 3.6×10⁻³ m², B₁ = 0.25 T; and R₂ = 7 Ω, N₂ = 21, A₂ = 1.8×10⁻³ m², B₂ = 0.50 T. If the torsional constants are equal, the ratio of voltage sensitivities of M₁ and M₂ is:
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