A. by pass the current
B. increase the sensitivity of the ammeter
C. increase the resistance of ammeter
D. none of the above
Related Mcqs:
- An ammeter is a______________?
A. secondary instrument
B. absolute instrument
C. recording instrument
D. integrating instrument - A moving-coil permanent-magnet instrument can be used as ____________by using a low resistance shunt?
A. ammeter
B. voltmeter
C. flux-meter
D. ballistic galvanometer - Which of the following devices may be used for extending the range of instruments ?
A. Shunts
B. Multipliers
C. Current transformers
D. Potential transformers
E. All of the above - Resistances can be measured with the help of_______________?
A. wattmeters
B. voltmeters
C. ammeters
D. ohmmeters and resistance bridges
E. all of the above - A potentiometer may be used for_________________?
A. measurement of resistance
B. measurement of current
C. calibration of ammeter
D. calibration of voltmeter
E. all of the above - When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is____________?
A. short-circuited
B. all right
C. faulty - In a meggar controlling torque is provided by______________?
A. spring
B. gravity
C. coil
D. eddy current - In a Weston frequency meter, the magnetic axes of the two fixed coils are__________________?
A. parallel
B. perpendicular
C. inclined at 60°
D. inclined at 120° - Systematic errors are_________________?
A. instrumental errors
B. environmental errors
C. observational errors
D. all of the above - Various adjustments in an energy meter include_______________?
A. light load or friction
B. lag and creep
C. overload and voltage compensation
D. temperature compensation
E. all of the above
