Question
In given $L - R$ circuit
✓
Answer
$\frac{1}{2} \mathrm{LI}^{2}=\frac{\mathrm{L} \varepsilon^{2}}{8 \mathrm{R}^{2}}$
$I=\frac{\varepsilon}{2 R}$
$\mathrm{IR}=\frac{\varepsilon}{2}$
So $\frac{\mathrm{LdI}}{\mathrm{dt}}=\frac{\varepsilon}{2}$
$\frac{\mathrm{d} \mathrm{I}}{\mathrm{dt}}=\frac{\varepsilon}{2 \mathrm{L}}$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A current $I$ flows in an infinitely long wire with cross section in the form of a semi-circular ring of radius $R$. The magnitude of the magnetic induction along its axis is:
→It is possible to hear beats from the two vibrating sources of frequency
The capacity of parallel plate condenser depends on
The $\chi - 1/T$ graph for an alloy of paramagnetic nature is shown in Fig. The curie constant is, then....$K$
→Which one of the following quantities does not have the unit of force per unit area
If the electric potential at any point $(x, y, z) \,m$ in space is given by $V =3 x ^{2}$ volt. The electric field at the point $(1,0,3) \,m$ will be ............
→The radius $r$ of half period zone is proportional to
→The velocity of light in air is $3\times10^8\, ms^{-1}$ and that in water is $2.2\times10^8\, ms^{-1}$. The polarising angle of incidence is.......$^o$
→A solid sphere of mass $M$ and radius $R$ is divided into two unequal parts. The first part has a mass of $\frac {7M}{8}$ and is converted into a uniform disc of radius $2R.$ The second part is converted into a uniform solid sphere. Let $I_1$ be the moment of inertia of the disc about its axis and $I_2$ be the moment of inertia of the new sphere about its axis. The ratio of $I_1/I_2$ is given by
→Name the logic gate equivalent to the diagram attached
