Answer:
Explanation:
According to ohm's law current flowing in a conductor is directly proportional to the voltage applied across two end of conductor.
i.e.
where R=resistance
whee L and d are length and Diameter
thus
where k=constant of Variation
Answer:
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Answer:
The first frequency is 671 Hz.
Explanation:
Given that,
Frequency = 660 Hz
Distance from one speaker = 0.20 m
Distance between two speakers = 4.5 m
Speed of sound = 344 m/s
We need to calculate the path difference
Path difference = 4.3-0.20 =4.1 m
We need to calculate the frequency
Using formula of path difference
Here, n = 8
Because, the frequency is less then 660 Hz at n = 7.
Hence, The first frequency is 671Hz.