1. 100 mA
2. 1 mA
3. 0.5 mA
4. 50 mA
50 mA
1. different arrangement
2. use of an OPAMP
3. working then over a small displacement range
4. all of these
all of these
1. non-directional relays at the source end and directional relays at the load end
2. non-directional relays at both the ends
3. directional relays at the source end and non-directional at the load end
4. directional relays at both the ends
non-directional relays at the source end and directional relays at the load end
1. low pass filters
2. high pass filters
3. notch filters
4. band stop filters
high pass filters
1. much less than any circuit breaker
2. much more than any circuit breaker
3. equal to the circuit breaker
4. none of these
much less than any circuit breaker
1. static measurements
2. dynamic measurements
3. both static and dynamic measurements
4. transient measurements
dynamic measurements
1. high vapour pressure and low conductivity properties
2. high vapour pressure and high conductivity properties
3. low vapour pressure and high conductivity properties
4. low vapour pressure and low conductivity properties
low vapour pressure and low conductivity properties
1. exhibits linear characteristics up to a displacement of + 5 mm
2. has a linearity of 0.05%
3. has an infinite resolution and high sensitivity which is of the order of 40 V/mm
4. all of these
all of these
1. higher output
2. an output voltage which is phase sensitive i.e the output voltage has a phase which can lead us to a conclusion whether the displacement of the core took place from right to left or from left to right
3. in order to establish the null or the reference point for the displacement of the core
4. both (b) and (c)
higher output
1. air blast circuit breaker
2. oil circuit breaker
3. vacuum circuit breaker
4. any one of these
vacuum circuit breaker