Question
What pre-information would you require to convert a galvanometer into ammeter or voltmeter?
✓
Answer
Two information’s are required:
- Resistance of galvanometer.
- Current in galvanometer for full scale deflection.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Answer carefully:
Guess a possible reason why water has a much greater dielectric constant (= 80) than say, mica (= 6).
Guess a possible reason why water has a much greater dielectric constant (= 80) than say, mica (= 6).
How does the angle of minimum deviation of a glass prism vary, if the incident violet light is replaced with red light?
Four 2cm × 2cm × 2cm cubes of ice are taken out from a refrigerator and are put in 200ml of a drink at 10°C.
- Find the temperature of the drink when thermal equilibrium is attained in it.
- If the ice cubes do not melt completely, find the amount melted. Assume that no heat is lost to the outside of the drink and that the container has negligible heat capacity. Density of ice = 900kg-m-3, density of the drink = 1000kg-m-3, specific heat capacity of the drink = 4200Jkg-1-K-1, latent heat of fusion of ice = 3.4 × 105J-kg-1.
A uniform wire of resistance $50\Omega$ is cut into 5 equal parts. These parts are now connected in parallel. What is the value of equivalent resistance of the combination?
→What is the cause of charge?
Figure shows a point charge +Q, located at a distance $\frac{\text{R}}{2}$ from the centre of a spherical metal shell. Draw the electric field lines for the given system.
→
What is the ratio of the intensities of the points situtated at equal distances from the midpoint of a short bar magnet on its axial and non-axial points?
What is the majority charge carrier in the semiconductor obtained by doping pure Ge crystal with P ?
Plane microwaves are incident on a long slit having a width of 5.0cm. Calculate the wavelength of the microwaves if the first diffraction minimum is formed at $\theta=30^\circ.$
→When is a Wheatstone’s bridge most sensitive?