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φ = BAcosθ φ kg m2 s 2 A 1 B kg s 2 A 1 A m2 θ V = N ∆φB ∆t V N ∆φB ∆t
f0 1 5 (332.0300Hz±0.0001Hz+ 332.0300Hz ± 0.0001Hz +332.0300Hz ± 0.0001Hz +332.0300Hz ± 0.0001Hz +429.6900Hz ± 0.0001Hz)= 351 562Hz ± 0 005Hz
Difference =0 03710 ± 0001 0 03400 ± 0001
Difference =0 00310 ± 0002
V = N ∆φB ∆t V ∝ N kg m2 s 2 A 1
L = N φ I L H N φ I L ∝ N
XL XC I = V Z I ∝ 1 Z Z = R2 +(XL XC )2 Z Ω R Ω XL Ω XC Ω XL XC XL = XC Z Z R Z XL = XC XL =2πfL XL Ω f L
XC = 1 2πfC XC Ω f C XL = XC 2πf0L = 1 2πfC f 2πf 2 0 L = 1 2πC 2πL f 2 0 = 1 (2π)2LC f0 f0 = 1 2π√LC f0 f0 ∝ 1 √L L f0
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∆t = 2∆d a ∆d = vi∆t + 1 2 a∆t2 ∆d a vi ∆t vi vi∆t ∆d = 1 2 a∆t2 ∆t cm·s 2 d a 16+14 5+15+15 5+13 5 =14 80 cm 13 5+9 5+6 5+16+125 5 =11 50 cm 2 14 8 981 ≈ 0 17390 sec ≈ 173 90 ms 2 11 5 981 ≈ 0.15312 sec ≈ 153.12 ms
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