A galvanometer has a resistance 50Ω. A resistance of 5Ω is connected parallel to it.
A galvanometer has a resistance 50Ω. A resistance of 5Ω is connected parallel to it. Fraction of the total current…
8 years ago
Questions
A 50Hz AC signal is applied in a circuit of inductance of (1/π)H and resistance 2100Ω
A 50Hz AC signal is applied in a circuit of inductance of (1/π)H and resistance 2100Ω. The impedance offered by…
8 years ago
SI unit of magnetic dipole moment is
SI unit of magnetic dipole moment is Options (a) A m⁻¹ (b) A m² (c) T m A⁻¹ (d) m…
8 years ago
The velocity v of waves produced in water depends on their wavelength λ, the density
The velocity v of waves produced in water depends on their wavelength λ, the density of water d and acceleration…
8 years ago
In the elastic collision of objects
In the elastic collision of objects Options (a) Only momentum remains constant (b) Only K.E remains constant (c) Both remain…
8 years ago
If a body is rolling on the surface, its total energy will be
If a body is rolling on the surface, its total energy will be Options (a)(1/2) mv² - (Gm₁m₂/R) (b) (1/2)…
8 years ago
A vibrating string of certain length l under a tension T resonates with a mode
A vibrating string of certain length l under a tension T resonates with a mode corresponding to the first overtone…
8 years ago
A string is stretched between fixed points seperated by 75 cm. It is observed
A string is stretched between fixed points seperated by 75 cm. It is observed to have resonant frequencies of 420…
8 years ago
In Young’s double slit interference experiment, using two coherent waves
In Young's double slit interference experiment, using two coherent waves of different amplitudes, the intensities ratio between bright and dark…
8 years ago
The polarising angle of glass is 57⁰. A ray of light which is incident at this angle
The polarising angle of glass is 57⁰. A ray of light which is incident at this angle will have an…
8 years ago