Question
What is rivetted galvanometer? What is the function of shunt in a galvanometer?

Answer

SELF

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 a dielectric is placed in an electric field, it gets polarized. The electric field in a polarized material is less than the applied field. When a paramagnetic substance is kept in a magnetic field, the field in the substance is more than the applied field. Explain the reason of this opposite behaviour.
Two audio speakers are kept some distance apart and are driven by the same amplifier system. A person is sitting at a place 6.0m from one of the speakers and 6.4m from the other. If the sound signal is continuously varied from 500Hz to 5000Hz, what are the frequencies for which there is a destructive interference at the place of the listener? Speed of sound in air = 320m/s.
The count rate of nuclear radiation coming from a radiation coming from a radioactive sample containing 128I varies with time as follows.
Time t(minute): 0 25 50 75 100
Ctount rate R(109s-1): 30 16 8.0 3.8 2.0
  1. Plot In $\Big(\frac{\text{R}_0}{\text{R}}\Big)$ against t.
  2. From the slope of the best straight line through the points, find the decay constant $\lambda.$
  3. Calculate the half-life $\text{t}_{\frac{1}{2}}.$
Consider a solid sphere of radius r and mass m that has a charge q distributed uniformly over its volume. The sphere is rotated about its diameter with an angular speed $\omega.$ Show that the magnetic moment $\mu$ and the angular momentum l of the sphere are related as $\mu=\frac{\text{q}}{2\text{m}}\text{l}.$
Two small balls, each of mass m are connected by a light rigid rod of length L. The system is suspended from its centre by a thin wire of torsional constant k. The rod is rotated about the wire through an angle $\theta_0$ and released. Find the tension in the rod' as the system passes through the mean position.

Standing waves of frequency 5.0kHz are produced in a tube filled with oxygen at 300K. The separation between the consecutive nodes is 3.3cm. Calculate the specific heat capacities Cp and Cof the gas.
The capacitance between the adjacent plates shown in figure is 50nF. A charge of $1.0\mu\text{C}$ is placed on the middle plate:

  1. What will be the charge on the outer surface of the upper plate?
  2. Find the potential difference developed between the upper and the middle plates.
Consider the arrangement shown in figure (17-E4). The distance D is large compared to the separation d between the slits.
  1. Find the minimum value of d so that there is a dark fringe at 0.
  2. Suppose d has this value. Find the distance x at which the next bright fringe is formed.
  3. Find the fringe-width.

Consider the situation shown in figure. The plates of the capacitor have plate area A and are clamped in the laboratory. The dielectric slab is released from rest with a length a inside the capacitor. Neglecting any effect of friction or gravity, show that the slab will execute periodic motion and find its time period.

Consider an infinitely long wire carrying a current I (t), with $\frac{\text{dI}}{\text{dt}}=\lambda=\text{constant}$. Find the current produced in the rectangular loop of wire ABCD if its resistance is R (Fig).