MCQ
An electric current in an LC – circuit at resonance is called - ______ 
  • The wattless current
  • B
    The displacement current
  • C
    The idle current
  • D
    The apparent current

Answer

Correct option: A.
The wattless current
An electric current in an LC – circuit at resonance is called - The wattless current.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

When a current is passed through a suspended moving-coil galvanometer, the deflection of the coil is 9 . Then, in the usual notation, the expression $\frac{\mu B}{\theta}$ is
A horizontal wire of mass ' $m$ ', length ' $l$' and resistance ' $R$ ' is sliding on the vertical rails on which uniform magnetic field ' $B$ ' is directed perpendicular. The terminal speed of the wire as it falls under the force of gravity is ( $g=$ acceleration due to gravity)
The moment of inertia of a thin uniform rod of mass $M$ and length $L$, about an axis passing through a point midway between the centre and one end, and perpendicular to its length, is
In Young’s double slit experiment, a thin uniform sheet of glass is kept in front of the two slits, parallel to the screen having the slits. The resulting interference pattern will satisfy
In the expression for Boyle's law, the product ' $P V$ ' has dimensions of
A stone is tied to one end of a string. Holding the other end, the string is whirled in a horizontal plane with progressively increasing speed. It breaks at some speed because ______ 
The efficiency of a heat engine is given by $\eta=$
The path difference between two interfering light waves meeting at a point on the screen is $\left(\frac{87}{2}\right) \lambda$. The band obtained at that point is
According to the right-hand rule, the direction of magnetic induction if the current is directed in an anticlockwise direction is ______   
If the absolute temperature of a body is doubled, the power radiated will increase by a factor of ______