Two moving-coil meters have N₁=30, A₁=3.6×10⁻³ m², B₁=0.25 T and N₂=42, A₂=1.8×10⁻³ m², B₂=0.50 T. Their spring constants are equal. If the ratio of current sensitivities is α, find 10α.
Physics · Magnetic effect of current
Two moving-coil meters have N₁=30, A₁=3.6×10⁻³ m², B₁=0.25 T and N₂=42, A₂=1.8×10⁻³ m², B₂=0.50 T. Their spring constants are equal. If the ratio of current sensitivities is α, find 10α.