Q. What is the purpose of a differential amplifier in voltmeter?

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Q. In a CRO to which part saw tooth waveform is applied?

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Q. What will be the sensitivity of a volt meter with 0 to 7mA meter movement?

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Q. Who invented the Wheatstone bridge?

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Q. In a Wheatstone bridge, which of the following is used as a null detector?

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Q. Which of the following can be measured using a Wheatstone bridge?

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Q. Which of the following device is used for measuring low resistance value?

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Q. A null type instrument with DC excitation is _________________

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Q. Which of the following device is used with 4 terminal resistors?

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Q. Why 4 terminal resistors are used?

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Q. What are the four terminals in four terminal resistance?

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Q. Accuracy in a bridge measurement depends on_____________

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Q. Measurement of impedance involves calculating ______________

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Q. Impedance can be measured by connecting an ohm meter across input or output.

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Q. What will you call an impedance with a zero phase angle?

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Q. AC equivalent of resistance is impedance.

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Q. Which of the following scientist was first to represent impedance with complex numbers?

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Q. Which of the following statement is correct for impedance?

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Q. Which of the following statement is correct for impedance?

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Q. What is the purpose of Owens Bridge?

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