The net electric force on a charge of +3μC at the mid-point on the line joining two
The net electric force on a charge of +3μC at the mid-point on the line joining two charges of magnitude…
7 years ago
JK2013
An Electric charge does not have which of the following properties?
An Electric charge does not have which of the following properties? Options (a) Total charge conservation (b) Quantisation of charge…
7 years ago
The induced emf in a coil of 10 H inductance in which current varies
The induced emf in a coil of 10 H inductance in which current varies from 9 A to 4 A…
7 years ago
The Davisson- Germer experiment is the direct evidence of
The Davisson- Germer experiment is the direct evidence of Options (a) particle nature of electrons (b) wave nature of electrons…
7 years ago
Einstein’s photoelectric equation is
Einstein's photoelectric equation is Options (a) Emax=hν-φ (b) E=mc² (c) E²=p²c²+m₀²c⁴ (d) E=(1/2)mv² Correct Answer: Emax=hν-φExplanation:No explanation available. Be the…
7 years ago
The temperature coefficient of the resistance of a wire is 0.00125 per ⁰C.
The temperature coefficient of the resistance of a wire is 0.00125 per ⁰C. At 300 K its resistance is 1Ω.…
7 years ago
A silver wire of radius 0.1 cm carries a current of 2A. If the charge density in silver
A silver wire of radius 0.1 cm carries a current of 2A. If the charge density in silver is 5.86x10²⁸…
7 years ago
An electron revolves in a circle at the rate of 10¹⁹ rounds per second.
An electron revolves in a circle at the rate of 10¹⁹ rounds per second. The equivalent current is (e=1.6x10⁻¹⁹C) Options…
7 years ago
The Rutherford scattering experiment proves that an atom consists of
The Rutherford scattering experiment proves that an atom consists of Options (a) a sphere of positive charge in which electrons…
7 years ago
If the alternating current I=I₁ cosωt+I₂ sinωt, then the rms current is given by
If the alternating current I=I₁ cosωt+I₂ sinωt, then the rms current is given by Options (a) I₁+I₂/√2 (b) │I₁+I₂│/√2 (c)…
7 years ago