MCQ
Before using the tangent galvanometer, its coil is set in
  • Magnetic meridian $($or vertically north south$)$
  • B
    Perpendicular to magnetic meridian
  • C
    At angle of $45^\circ$ to magnetic meridian
  • D
    It does not require any setting

Answer

Correct option: A.
Magnetic meridian $($or vertically north south$)$
Magnetic meridian $($or vertically north south$)$

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

When the temperature of silicon sample is increased from $27^\circ C$ to $100^\circ C$, the conductivity of silicon will be
Consider the arrangement shown in figure. The total energy stored is $U_1$ when key is closed. Now the key $K$ is made off (opened) and two dielectric slabs of relative permittivity ${ \in _r}$ are introduced between the plates of the two capacitors. The slab tightly fit in between the plates. The total energy stored is now $U_2$. Then the ratio of $U_1/U_2$ is
The half-life of radioactive Polonium $(Po)$ is $138.6$ days. For ten lakh Polonium atoms, the number of disintegrations in $24$ hours is
From the photoelectric effect experiment, following observations are made. Identify which of these are correct

$A.$ The stopping potential depends only on the work function of the metal.

$B.$ The saturation current increases as the intensity of incident light increases.

$C.$ The maximum kinetic energy of a photo electron depends on the intensity of the incident light.

$D.$ Photoelectric effect can be explained using wave theory of light.

Choose the correct answer from the options given below:

How does the capacitance change with the effect of the dielectric when the battery remains connected across the capacitor?
The true statement for thermo e.m.f. of a thermocouple
Two sources of light emit with a power of $200 \mathrm{~W}$. The ratio of number of photons of visible light emitted by each source having wavelengths $300\  \mathrm{nm}$ and $500 \mathrm{~nm}$ respectively, will be :
When a radioactive substance is kept in a vessel, the atmosphere around it is rich with:
One of the following wavelengths is absent and the rest are present in the $X-$rays coming from a Coolidge tube. Which one is the absent wavelength?
If the monochromatic source in Young's double slit experiment is replaced by white light, then