NLC Technical Quiz 36

Two coils with inductance L₁=10 H and L₂=10 H is shown below:

If the coupling factor k = 0.5, Calculate mutual inductance between the coil:

If the spring in PMMC instrument breaks then what happens to the deflecting torque.

In two wattmeter method,formula to find power factor angle of the load is?

The total capacitance of two capacitors C₁ and C₂ connected in series will be

The deflection expression  corresponds to

Which of the following theory explains the phenomenon of arc extinction.

According to the Thumb rule in overhead lines, which of the following statement is true?

Which device is used to reduce the steepness of the wave front of a particular surge in the transmission lines?