A wire of length L metre carrying a current I ampere is bent in the form
A wire of length L metre carrying a current I ampere is bent in the form of a circle. The…
7 years ago
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A particle with charge q is moving along a circle of radius R with unoform speed v.
A particle with charge q is moving along a circle of radius R with unoform speed v. The associated magnetic…
7 years ago
The magnetic susceptibility of a material of a rod is 299. Permeability of vacuum
The magnetic susceptibility of a material of a rod is 299. Permeability of vacuum μ₀ is 4πx10⁻⁷ Hm⁻¹. Absolute permeability…
7 years ago
A paramagnetic sample shows a net magnetisation of 0.8 Am⁻¹, when placed
A paramagnetic sample shows a net magnetisation of 0.8 Am⁻¹, when placed in an external magnetic field of strength 0.8…
7 years ago
An astronomical telescope arranged for normal adjustment has a magnification of 6.
An astronomical telescope arranged for normal adjustment has a magnification of 6. If the length of the telescope is 35…
7 years ago
The nuclear fusion reaction between deutrium and tritium takes place
The nuclear fusion reaction between deutrium and tritium takes place Options (a) at low temperature and low pressure (b) at…
7 years ago
The capacitance of two concentric spherical shells of radii R₁ and R₂ (R₂>R₁) is
The capacitance of two concentric spherical shells of radii R₁ and R₂ (R₂>R₁) is Options (a) 4πε₀R₂ (b) 4πε₀(R₂-R₁)/R₁R₂ (c)…
7 years ago
For the action of a common Base (CB) transistor, (E=emitter, B= base, C= collector)
For the action of a common Base (CB) transistor, (E=emitter, B= base, C= collector) the required CB, EB junction bias…
7 years ago
An alternating emf given by equation e=300 sin[(100 π)t] V
An alternating emf given by equation e=300 sin[(100 π)t] V is applied to a resistance 100Ω. The rms current through…
7 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…
7 years ago