Q1:-In a moving coil instrument the deflecting torque is proportional to
Q2:-Electrostatic instruments are normally used for
Q3:-No eddy current and hysteresis losses occur in
Q4:-Creeping is observed in
Q5:-A C.T. is overload when
- current
- square of the current
- square root of the current
- sine of the measurand
Q2:-Electrostatic instruments are normally used for
- low current measurements
- high current measurements
- low voltage measurements
- high voltage measurements
Q3:-No eddy current and hysteresis losses occur in
- Electro static instruments
- PMMC type instruments
- moving iron instruments
- none of these
Q4:-Creeping is observed in
- watt hour meter
- power factor meters
- wattmeter
- ammeter
Q5:-A C.T. is overload when
- the load connected to it is less than its burden
- its terminals are short circuited
- when its terminals are open circuited
- when the primary current is 110 % of its rated value
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