MCQ
The (? – ?) graph for a coil is
  • B
  • C
  • D

Answer

Correct option: A.
(a)

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

The de-Broglie wavelength associated with the electron in the $n\, = 4$ level is
The capacitance of a parallel plate capacitor with air as medium is $6\, \mu F$. With the introduction of a dielectric medium, the capacitance becomes $30\, \mu F$. The permittivity of the medium is..........$C ^{2} N ^{-1} m ^{-2}$

$\left(\varepsilon_{0}=8.85 \times 10^{-12} C ^{2} N ^{-1} m ^{-2}\right)$

A 10 pF capacitor is connected to a 50 V battery. How much electrostatic energy is stored in the capacitor
$A$ long straight wire is placed along the axis of a circular ring of radius $R$. The mutual inductance of this system is
The resultant force on the current loop $PQRS$ due to a long current carrying conductor will be
The half-life of radon is $3.8\, days$. Three forth of a radon sample decay in  ............$days$
In a series $L-C$ circuit, if $L=10^{-3} \,H$ and $C=3 \times 10^{-7} \,F$ is connected to a $100 \,V -50 \,Hz$ a.c. source, the impedance of the circuit is ...........
The reciprocal of resistance is
Given below are two statements: one is labelled a

Assertion $(A)$ and the other is labelled as Reason$(R)$

$Assertion$ $(A)$ : Work done by electric field on moving a positive charge on an equipotential surface is always zero.

$Reason$ $(R)$ : Electric lines of forces are always perpendicular to equipotential surfaces.

In the light of the above statements, choose the most appropriate answer from the options given below 

Power factor of an $L-R$ series circuit is $0.6$ and that of a $C-R$ series circuit is $0.5$. If the element ($L, C,$ and $R$) of the two circuits are joined in series the power factor of this circuit is found to be $1.$ The ratio of the resistance in the $L-R$ circuit to the resistance in the $C-R$ circuit is