Physics

A coil of resistance 10 Ω and an inductance 5 H is connected to a 100 volt

A coil of resistance 10 Ω and an inductance 5 H is connected to a 100 volt battery. The energy…

Electrons with energy 80 keV are incident on the tungsten target of an X-ray tube.

Electrons with energy 80 keV are incident on the tungsten target of an X-ray tube. The K-shell electrons of tungsten…

A charged oil drop is suspended in a uniform field at 3×10⁴ V/m so that it neither falls

A charged oil drop is suspended in a uniform field at 3x10⁴ V/m so that it neither falls nor rises.…

An α-particle moves in a circular path of radius 0.83 cm in the presence of a magnetic

An α-particle moves in a circular path of radius 0.83 cm in the presence of a magnetic field of 0.25…

A current of 5 A is passing through a metallic wire of cross-sectional area 4×10⁻⁶ m².

A current of 5 A is passing through a metallic wire of cross-sectional area 4x10⁻⁶ m². If the density of…

A 36 Ω galvanometer is shunted by resistance of 4 Ω. The percentage of the total current

A 36 Ω galvanometer is shunted by resistance of 4 Ω. The percentage of the total current, which passes through…

Two spherical nuclei have mass numbers 216 and 64 with their radii R₁ and R₂,

Two spherical nuclei have mass numbers 216 and 64 with their radii R₁ and R₂, respectively. The ratio, R₁/R₂ is…

A deutron is bombarded on ₈O¹⁶ nucleus and α-particle is emitted. The product nucleus is

A deutron is bombarded on ₈O¹⁶ nucleus and α-particle is emitted. The product nucleus is Options (a) ₇N¹³ (b) ₅B¹⁰…

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…

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…