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Answer :

For measuring a very high resistance we should use Meggar.

Related questions

Description : When measuring insulation resistance of cables using d.c. source, the galvanometer used should be initially short circuited because  (A) Cables have a low value of capacitance which draws a high ... high value of charging current (D) Cables have a low value of capacitance and initial resistance

Last Answer : When measuring insulation resistance of cables using d.c. source, the galvanometer used should be initially short circuited because Cables have a high value of capacitance which draws a high value of charging current

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Description : Name two methods for measurement of low, medium and high resistance. Give one advantage and one limitation of V- I method.

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Description : What are the test and measuring instrument required in an Electrical depots?

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Description : State two purposes of calibration of measuring instruments.

Last Answer : Purposes of calibration of measuring instruments: - The purpose of calibration is to ensure that readings of an instrument are consistent with other instruments. It is also important in determining the ... will need to be calibrated periodically to make sure it can function properly and safely. 

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Last Answer : i) Sensitivity: It is the ratio of the change in output signal to the change in input signal of quantity being measured.  ii) Selectivity: It is the term to describe fulfillment of the requirements of measurement by an instrument to be suitable for use in a given situation. 

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Description : Give the classification of the errors used in measuring instrument & state the reason for their occurrence.

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Description : List out any four effects of electric current used in measuring instruments & write name of meter working on it.

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Description : What arc the errors occurring in measuring devices due to stray magnetic field and temp '? Explain how to compensate them.

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Description : State the function of controlling torque in electrical measuring instrument.

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Description : what is equivalent resistance when four 4 Ohm resistors are connected in i) series ii) parallel

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