Measurement and Instrumentation
It can be stated that

No generalisation can be made with regard to the flux densities in CT and PT
CT operates at almost the same flux density as a PT
CT operates with considerably lower flux density than a PT
CT operates with a higher flux density than PT

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Measurement and Instrumentation
The time/div and voltage axes of an oscilloscope have been creased. A student connects a 1 KHz, 5 V P-P square wave calibrition pulse to channel-1 of the scope and observes the screen to be as shown in the upper trace of figure. An unknown signal is connected to channel-2 (lower trace) of the scope. If the time/div and V/div on both channels are the same, the amplitude (P-P) and period of the unknown signal are respectively

 10 V, 1 ms.
  7.5 V, 2 ms.
 5 V, 1 ms.
 5 V, 2 ms.

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