We have a galvanometer of resistance $25\,\Omega $. It is shunted by a $2.5\,\Omega $ wire. The part of total current that flows through the galvanometer is given as
  • A$\frac{I}{{{I_0}}} = \frac{1}{{11}}$
  • B$\frac{I}{{{I_0}}} = \frac{1}{{10}}$
  • C$\frac{I}{{{I_0}}} = \frac{3}{{11}}$
  • D$\frac{I}{{{I_0}}} = \frac{4}{{11}}$
Medium
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 strip of copper and another of germanium are cooled from room temperature to $80\, K$. The resistance of
    View Solution
  • 2
    The following four wires are made of the same material and are at the same temperature. Which one of them has highest electrical resistance
    View Solution
  • 3
    Find the error in reading of voltmeter ................ $\%$
    View Solution
  • 4
    To measure the internal resistance of a battery, potentiometer is used. For $\mathrm{R}=10 \Omega$, the balance point is observed at $\ell=500 \mathrm{~cm}$ and for $\mathrm{R}=1 \Omega$ the balance point is observed at $\ell=400 \mathrm{~cm}$. The internal resistance of the battery is approximately :
    View Solution
  • 5
    The length of a metallic wire is increased by $20 \%$ and its area of cross section is reduced by $4 \%$. The percentage change in resistance of the metallic wire is $.......$
    View Solution
  • 6
    In the circuit shown in the figure below, which of the following statement is incorrect ?
    View Solution
  • 7
    Some electric bulbs are connected in series across a $220\, V$ supply in a room. If one bulb is fused then remaining bulbs are connected again in series across the same supply. The illumination in the room will
    View Solution
  • 8
    $A \,6 \,V$ battery of negligible internal resistance is connected across a uniform wire of length $1\, m$. The positive terminal of another battery of emf $4\,V$ and internal resistance $1\, \Omega$ is joined to the point $A$ as shown in figure. The ammeter shows zero deflection when the jockey touches the wire at the point $C$. The $AC$ is equal to
    View Solution
  • 9
    The resistance of a wire is ${10^{ - 6}}\,\Omega $ per meter. It is bend in the form of a circle of diameter $2\,m$. A wire of the same material is connected across its diameter. The total resistance across its diameter $AB$ will be
    View Solution
  • 10
    The given figure shows $a$ network of resistances and $a$ battery. Choose the correct statement $(s)$.
    View Solution