What amount of heat will be generated in a coil of resistance $R$ due to a charge $q$ passing through it if the current in the coil decreases to zero uniformly during a time interval $\Delta t$
  • A$\frac{4}{3}\frac{{{q^2}R}}{{\Delta t}}$
  • Bln $\frac{{{q^2}R}}{{2\Delta t}}$
  • C$\frac{{2{q^2}R}}{{3\Delta t}}$
  • Dln $\frac{{\left( {2\Delta t} \right)}}{{{q^2}R}}$
Advanced
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    Current through wire $XY$ of circuit shown is ................ $A$
    View Solution
  • 2
    The charge on a capacitor plate in a circuit, as a function of time, is shown in the figure

    What is the value of current at $t = 4\,s$ ? ............... $\mu  A$

    View Solution
  • 3
    The terminal potential difference of a cell when short-circuited is ($E$ = $E.M.F.$ of the cell)
    View Solution
  • 4
    Say switches $S_1, S_2$ and so on upto $S_6$ are closed, one after other in order (first $S_1$, then $S_2$) at regular intervals of $1$ minute starting from $t = 0$. The graph of current versus time is best represented as
    View Solution
  • 5
    Dimensions of a block are $1\,cm \times 1\,cm \times 100\,cm$. If specific resistance of its material is $3 \times {10^{ - 7}}\,ohm - m$, the resistance between the square faces is
    View Solution
  • 6
    What are the charges stored in the $1 \,\mu F$ and $2 \,\mu F$ capacitors in the circuit below, once the currents become steady?
    View Solution
  • 7
    Two bulbs one of $200$ $\mathrm{volts},$ $60$ $\mathrm{watts}$ and the other of $200$ $\mathrm{volts},$ $100$ $\mathrm{watts}$ are connected in series to a $200$ $\mathrm{volt}$ supply. The power consumed will be ................ $\mathrm{watt}$
    View Solution
  • 8
    $A$ battery of $\mathrm{emf}$ $E$ and internal resistance $r$ is connected across a resistance $R$. Resistance $R$ can be adjusted to any value greater than or equal to zero. Agraph is plotted between the current $(i)$ passing through the resistance and potential difference $(V) $ across it. Select the correct alternative $(s)$.
    View Solution
  • 9
    Three resistors are connected to form the sides of a triangle $ABC$, the resistance of the sides $AB$, $BC$ and $CA$ are $40\,ohms$, $60\,ohms$ and $100\,ohms$ respectively. The effective resistance between the points $A$ and $B$ in $ohms$ will be
    View Solution
  • 10
    Calculate the current in wire $BD$ ................ $A$
    View Solution