For the following questions answer them individually
To maximize the driving torque in an induction type instrument, flux produced by shunt coil and series coil should be
To minimize the errors due to lead and contact resistances, low resistances used in electrical measurement work are provide with
Examine the two statements ‘A’ and ‘R’ and select your answer
Statement A : Switching of a lamp in house produce noise in a radio.
Statement R : Switching operation produces are across separating contacts
The small pockets of air in the high voltage cable provide________relative permittivity _________ electric field and at these sites breakdown is likely to be initiated
The capacitance measured between any two cores of a 3-core cable with the sheated earthed is $$3 \mu F$$. The capacitance per phase will be
In an insulated cable having core diameter d and overall diameter D, the ratio of maximum to minimum dielectric stress is given by
In electronic circuits, for blocking the DC component of a voltage signal, a/an _________ is connected is series with the voltage source
A attenuator probe as shown, is connected to an amplifier of input capacitance 0.1 $$\mu F$$. Value of C that must be connected across 100 k to make the overall gain independent of frequency, is