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Xelga [282]
2 years ago
15

Technician A says a that a voltmeter can be used to monitor the output signal of an optical sensor. Technician B says that optic

al sensors should be tested with an oscilloscope because of the sensor's speed. Which technician is correct?
A. Technician A only
B. Technician B only
C. Both technicians A and B
D. Neither technician A nor B
Physics
1 answer:
katrin2010 [14]2 years ago
5 0

Answer:

B. Technician B only

Explanation:

An oscilloscope can be used to check the output signal of an optical sensor. The oscilloscope has the functioning of viewing the results in the form of waveform and its time scale settings can be altered to meet the requirements of the results.

A voltmeter cannot be <u>directly</u> used to monitor the output signal of an optical sensor. But a <u>digital multi-meter</u> can be used to check an optical sensor if the digital multi-meter is set on AC - Volt reading mode.

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The relation between TT and θθ can be derived by solving the equation of motion of the simple pendulum (from F=ma)

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For small angles, θ≪1,θ≪1, and hence sinθ≈θsin⁡θ≈θ. Hence,

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This second-order differential equation can be solved to get θ=θ0cos(ωt),ω=gl−−√θ=θ0cos⁡(ωt),ω=gl. The period is thus T=2πω=2πlg−−√T=2πω=2πlg, which is independent of the starting angle θ0θ0.

For large angles, however, the above derivation is invalid. Without going into the derivation, the general expression of the period is T=2πlg−−√(1+θ2016+...)T=2πlg(1+θ0216+...). At large angles, the θ2016θ0216 term starts to grow big and cause 

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Mechanics: design a decision tree to determine if an object is experiencing an unbalanced force, and using newton's laws of moti
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Answer:

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I hope it helps, Regards.
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