Two moving coil meters, M1 and M2 have the following particulars:R1 = 10 W, N1 = 30,A1 = 3.6 × 10–3 m2, B1 = 0.25 TR2 = 14 W, N2 = 42,A2 = 1.8 × 10–3 m2, B2 = 0.50 T (The spring constants are identical for the two meters).Determine the ratio of (a) current sensitivity and (b) voltagesensitivity of M2 and M1.

Two moving coil meters, M1 and M2 have the following particulars:R1 =

1.	Two moving coil meters, M1 and M2 have the following particulars:R1 = 10 W, N1 = 30,A1 = 3.6 × 10–3 m2, B1 = 0.25 TR2 = 14 W, N2 = 42,A2 = 1.8 × 10–3 m2, B2 = 0.50 T (The spring constants are identical for the two meters).Determine the ratio of (a) current sensitivity and (b) voltagesensitivity of M2 and M1.
Answer» Two moving coil meters, M1 and M2 have the following particulars:R1 = 10 W, N1 = 30,A1 = 3.6 × 10–3 m2, B1 = 0.25 TR2 = 14 W, N2 = 42,A2 = 1.8 × 10–3 m2, B2 = 0.50 T (The spring constants are identical for the two meters).Determine the ratio of (a) current sensitivity and (b) voltagesensitivity of M2 and M1.

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