MCQ
E denotes electric field in a uniform conductor, I corresponding current through it, $V_d$ drift velocity of electrons and P denotes thermal power produced in the conductor, then which of the following graph is incorrect
  • A
  • B
  • D

Answer

Correct option: C.
(c)

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 direction of current in an iron-copper thermocouple is
A charge $q$ is distributed uniformly on the surface of a sphere of radius $R$. It is covered by a concentric hollow conducting sphere of radius $2 R$. Charge on the outer suiface of the hollow sphere will be, if it is earthed
The work function of cesium metal is $2eV$. It means that
A metal ring of radius $r = 0.5 \,\,m $ with its plane normal to a uniform magnetic field $B$ of induction $0.2 T$ carries a current $I = 100\,\, A$. The tension in newtons developed in the ring is:
Which of the following figure represents the variation of In $\left(\frac{R}{R_{0}}\right)$ with $\ln A$ (If $R=$ radius of a nucleus and $A =$ its mass number)
A fixed horizontal wire carries a current of $200\, A$. Another wire having a mass per unit length ${10^{ - 2}}\,kg/m$ is placed below the first wire at a distance of $2\, cm$ and parallel to it. How much current must be passed through the second wire if it floats in air without any support? What should be the direction of current in it
A disk of radius $a / 4$ having a uniformly distributed charge $6 \mathrm{C}$ is placed in the $x-y$ plane with its centre at $(-a / 2,0,0)$. A rod of length $a$ carrying a uniformly distributed charge $8 \mathrm{C}$ is placed on the $x$-axis from $x=a / 4$ to $x=5 a / 4$. Two point charges $-7 \mathrm{C}$ and $3 \mathrm{C}$ are placed at $(a / 4,-a / 4,0)$ and $(-3 a / 4,3 a / 4,0)$, respectively. Consider a cubical surface formed by six surfaces $x= \pm a / 2, y= \pm a / 2$, $z= \pm a / 2$. The electric flux through this cubical surface is
The current through an ideal $PN-$junction shown in the following circuit diagram will be .....$mA$
In a $LCR$ circuit having $ L = 8.0 \,henry,\,C = 0.5 \mu F $ and $R = 100\, \Omega$ in series. The resonance frequency in per second is
Two ideal electric dipoles $A$ and $B$ having their dipole moment $p_{1}$ and $p_{2}$ respectively are placed on a plane with their centres at $O$ as shown in the figure. At point $C$ on the axis of dipole $A$, the resultant electric field is making an angle of $37^{\circ}$ with the axis. The ratio of the dipole moment of $A$ and $B, \frac{P_{1}}{P_{2}}$ is $....$ (take $\left.\sin 37^{\circ}=\frac{3}{5}\right)$