Answer :
Final answer:
To test frequency using a rotary dial, adjust the dial to the resonant frequency of the system being tested. By doing so, the frequency of the system can be determined.
Explanation:
In order to test frequency using a rotary dial, the student will need to adjust the dial to the resonant frequency of the system they are testing. The resonant frequency is the frequency at which the system naturally vibrates or oscillates with the greatest amplitude. By adjusting the dial until the system reaches its resonant frequency, the student can determine the frequency of the system.
For example, in the case of a piano tuner, they might use a rotary dial to adjust the tension of the piano strings until the piano vibrates at its resonant frequency, producing the desired musical note. Similarly, in an electronic circuit, the student can use a rotary dial to adjust the frequency of the oscillations until the circuit reaches resonance.
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