A moving coil galvanometer has $150$ equal divisions. Its current sensitivity is $10$ divisions per milliampere and voltage sensitivity is $2$ divisions per millivolt. In order that each division reads $1\, volt$, the resistance in $ohms$ needed to be connected in series with the coil will be
  • A$99995$
  • B$9995$
  • C${10^3}$
  • D${10^5}$
AIEEE 2005, 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
    Two wires each carrying a steady current $I$ are shown in four configurations in Column $I$. Some of the resulting effects are described in Column $II$. Match the statements in Column $I$ with the statements in Column $II$ and indicate your answer by darkening appropriate bubbles in the $4 \times 4$ matrix given in the $ORS$.

    Column $I$ Column $II$
    $(A)$ Point $P$ is situated midway between the wires. $Image$ $(p)$ The magnetic fields $(B)$ at $P$ due to the currents in the wires are in the same direction.
    $(B)$ Point $P$ is situated at the mid-point of the line joining the centers of the circular wires, which have same radii. $Image$ $(q)$ The magnetic fields $(B)$ at $P$ due to the currents in the wires are in opposite directions.
    $(C)$ Point $P$ is situated at the mid-point of the line joining the centers of the circular wires, which have same radii. $Image$ $(r)$ There is no magnetic field at $P$.
    $(D)$ Point $P$ is situated at the common center of the wires. $Image$ $(s)$ The wires repel each other.

     

    View Solution
  • 2
    A charged particle enters a magnetic field $H$ with its initial velocity making an angle of $45^\circ $ with $H$. The path of the particle will be
    View Solution
  • 3
    An electron (charge $q$ $coulomb$) enters a magnetic field of $H$ $weber/{m^2}$ with a velocity of $v\,m/s$ in the same direction as that of the field the force on the electron is
    View Solution
  • 4
    The resistance of an ideal ammeter is
    View Solution
  • 5
    Current is flowing through a conducting hollow pipe whose area of cross-section is shown in the figure. The value of magnetic induction will be zero at
    View Solution
  • 6
    If an electron enters a magnetic field with its velocity pointing in the same direction as the magnetic field, then
    View Solution
  • 7
    A long straight wire in the horizontal plane carries a current of $50\, A$ in north to south direction. Give the magnitude and direction of $B$ at a point $2.5\,m$ east of the wire
    View Solution
  • 8
    The graph which represents the relation between the total resistance $R$ of a multi range moving coil voltmeter and its full scale deflection $V$ is
    View Solution
  • 9
    A charged particle moves along circular path in a uniform magnetic field in a cyclotron. The kinetic energy of the charged particle increases to $4$ times its initial value. What will be the ratio of new radius to the original radius of circular path of the charged particle
    View Solution
  • 10
    Two parallel long current carrying wire separated by a distance $2 \mathrm{r}$ are shown in the figure. The ratio of magnetic field at $\mathrm{A}$ to the magnetic field produced at $C$ is $\frac{x}{7}$. The value of $x$ is $\qquad$
    View Solution