Question
Which of the following is vector quantity(a) Current density(b) Current(c) Wattless current(d) Power
       

Answer

(a) Current density

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

If no external voltage is applied across P-N junction, there would be(a) No electric field across the junction (b) An electric field pointing from N-type to P-type side across the junction(c) An electric field pointing from P-type to N-type side across the junction(d) A temporary electric field during formation of P-N junction that would subsequently disappear
 
 
 
 
The energy density of magnetic field $\vec{B}$ is :
A potentiometer has uniform potential gradient. The specific resistance of the material of the potentiometer wire is $10^{–7}\ ohm–$meter and the current passing through it is $0.1$ ampere; cross$-$section of the wire is $10^{–6} m^2$. The potential gradient along the potentiometer wire is
The oscillating electric and magnetic vectors of an electromagnetic wave are oriented along:
What is the ratio of wavelength of radiations emitted when an electron in hydrogen atom jump from fourth orbit to second orbit and from third orbit to second orbit(a) 27 : 25(b) 20 : 27(c) 20 : 25(d) 25 : 27
       
In the circuit given below, $V(t)$ is the sinusoidal voltage source, voltage drop $V_{AB}(t)$ across the  resistance $R$ is
In the nuclear reaction $92^{\mathrm{U}^{2 \mathrm{~s}}} \rightarrow \mathrm{z}^{\mathrm{Th}^{\mathrm{A}}}+2^{\mathrm{He}^4}$, the values of $A$ and $Z$ are
The self-inductance of a coil will be less when:
The hysteresis cycle curve for the material of a permanent magnet is:
Assertion : Radioactivity of $10^8$ undecayed radioactive nuclei of half life of $50$ days is equal to that of $1.2 \times 10^8$ number of undecayed nuclei of some other material with half life of $60$ days  
Reason : Radioactivity is proportional to half-life.