MCQ
Which of the following statement is not the true
  • While taking reading of tangent galvanometer, the plane of the coil must be set at right angles to the earth’s magnetic meridian
  • B
    A short magnet is used in a tangent galvanometer since a long magnet would be heavy and may not easily move
  • C
    Measurements with the tangent galvanometer will be more accurate when the deflection is around $45^\circ$
  • D
    A tangent galvanometer can not be used in the polar region

Answer

Correct option: A.
While taking reading of tangent galvanometer, the plane of the coil must be set at right angles to the earth’s magnetic meridian
While taking reading of tangent galvanometer, the plane of the coil must be set at right angles to the earth’s magnetic meridian

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A short-circuited coil is placed in a time-varying magnetic field. Electrical power is dissipated due to the current induced in the coil. If the number of turns were to be quadrupled and the wire radius halved, the electrical power dissipated would be(a) Halved(b) The same(c) Doubled(d) Quadrupled
       
A point P is situated on the axis of an electric dipole at a distance x from its mid-point, the electric potential at point P is proportional to:
The wave-like character was experimentally proved for light by:
What is the correct order in which the listed atomic models were advanced and accepted, earliest first?
Let r be the distance of a point on the axis of a magnetic dipole from its centre. The magnetic field at such a point is proportional to:
  1. $\frac{1}{\text{r}}$
  2. $\frac{1}{\text{r}^2}$
  3. $\frac{1}{\text{r}^3}$
  4. None of these.
Consider the following statements about sound passing through a gas.
  1. The pressure of the gas at a point oscillates in time.
  2. The position of a small layer of the gas oscillates in time.
  1. Both A and B are correct.
  2. A is correct but B is wrong.
  3. B is correct but A is wrong.
  4. Both A and B are wrong.
The displacement current flows in the dielectric of a capacitor when the potential difference across its plates.
Calculate the current through a lamp of 25w operating at 220v.
In an isothermal process on an ideal gas, the pressure increases by 0.5%. The volume decreases by about
  1. 0.25%
  2. 0.5%
  3. 0.7%
  4. 1%​​
If $3$ charges are placed at the vertices of equilateral triangle of charge $' q\ '$ each. What is the net potential energy, if the side of equilateral $\Delta$ is $I \ cm$