A long straight wire of radius a carries a steady current I. The current is uniformly
A long straight wire of radius a carries a steady current I. The current is uniformly distributed over its cross-section.…
8 years ago
Questions
A long wire carrying a steady current is bent into a circular loop of one turn.
A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at…
8 years ago
A bar magnet with magnetic moment 2.5×10³ JT⁻¹ is rotating in horizontal plane
A bar magnet with magnetic moment 2.5x10³ JT⁻¹ is rotating in horizontal plane in the space containing magnetic induction B=4x10⁻⁵…
8 years ago
A vertical spring with force constant k is fixed on a table. A ball of mass
A vertical spring with force constant k is fixed on a table. A ball of mass m at a height…
8 years ago
A 2 kg mass starts from rest on an inclined smooth surface with inclination
A 2 kg mass starts from rest on an inclined smooth surface with inclination 30° and length 2 m. How…
8 years ago
At what height h above earth, the value of g becomes g/2 (where R=radius of earth)?
At what height h above earth, the value of g becomes g/2 (where R=radius of earth)? Options (a) (√2-1)R (b)…
8 years ago
Radius of orbit of satellite of earth is R. Its kinetic energy is proportional to
Radius of orbit of satellite of earth is R. Its kinetic energy is proportional to Options (a) 1/R (b) 1/√R…
8 years ago
A hollow sphere of radius 0.1m has a charge of 5×10⁻⁸C. The potential
A hollow sphere of radius 0.1m has a charge of 5x10⁻⁸C. The potential at a distance of 5cm from the…
8 years ago
A Si and a Ge diode has identical physical dimensions. The bandgap in Si is larger
A Si and a Ge diode has identical physical dimensions. The bandgap in Si is larger than that in Ge.…
8 years ago
B is doped in Si or Ge, then we will get
B is doped in Si or Ge, then we will get Options (a) P-type semiconductor (b) N-type semiconductor (c) An…
8 years ago