A silver and zinc voltameter are connected in series and a current $i$ is passed through them for a time $t$ liberating $W\, gm$ of zinc. The weight of silver deposited is nearly ..............$W$
Medium
Download our app for free and get startedPlay store
(d) $\frac{{{m_{Zn}}}}{{{m_{Ag}}}} = \frac{{{E_{Zn}}}}{{{E_{Ag}}}}$ $ \Rightarrow $ ${m_{Ag}} = W\,\left( {\frac{{{E_{Ag}}}}{{{E_{Zn}}}}} \right)$= $3.3\, W$ = $3.5\, W$
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
    A wire of length $5\,m$ and radius $1\,mm$ has a resistance of $1\, ohm$. What length of the wire of the same material at the same temperature and of radius $2\,mm$ will also have a resistance of $1\, ohm$  .............. $m$
    View Solution
  • 2
    Resistances ${R_1}$ and ${R_2}$ are joined in parallel and a current is passed so that the amount of heat liberated is ${H_1}$ and ${H_2}$ respectively. The ratio $\frac{{{H_1}}}{{{H_2}}}$ has the value
    View Solution
  • 3
    Time taken by a $836\; W$ heater to heat $1\; litre$ of water from $10^{\circ} C$ to $40^{\circ} C$ is
    View Solution
  • 4
    On increasing the temperature of a conductor, its resistance increases because
    View Solution
  • 5
    Two resistances are joined in parallel whose resultant is $\frac{6}{8}\,ohm$. One of the resistance wire is broken and the effective resistance becomes $2\,\Omega $. Then the resistance in ohm of the wire that got broken was
    View Solution
  • 6
    When electric bulbs of same power, but different marked voltage are connected in series across the power line, their brightness will be :
    View Solution
  • 7
    Considering the following circuit, select the correct alternative
    View Solution
  • 8
    In potentiometer a balance point is obtained, when
    View Solution
  • 9
    The circuit shown here has two batteries of $8.0\,V$ and $16.0\,V$ and three resistors $3\,\Omega ,\,9\,\Omega $ and $9\,\Omega $ and a capacitor of $5.0\,\mu F.$

    How much is the current $I$ in the circuit in steady state? ................... $A$

    View Solution
  • 10
    A current through a wire depends on time as $i =\alpha_{0} t +\beta t ^{2}$ where $\alpha_{0}=20 A / s$ and $\beta=8 As ^{-2} .$ Find the charge crossed through a section of the wire in $15 \,s$ (in $C$)
    View Solution