In a potentiometer experiment two cells of e.m.f. E₁ and E₂ are used in series
In a potentiometer experiment two cells of e.m.f. E₁ and E₂ are used in series and in conjunction and the…
8 years ago
Questions
The charge flowing through a resistance R varies with time t as Q=at-bt²,
The charge flowing through a resistance R varies with time t as Q=at-bt², where a and b are positive constants.…
8 years ago
A potentiometer wire is 100cm long and a constant potential difference is maintained
A potentiometer wire is 100cm long and a constant potential difference is maintained across it. Two cells are connected in…
8 years ago
An electric motor operating on a 60 volt D.C supply draws a current of 10 amp.
An electric motor operating on a 60 volt D.C supply draws a current of 10 amp. If the efficiency of…
8 years ago
A current of 2A flows through a 2Ω resistor when connected across a battery
A current of 2A flows through a 2Ω resistor when connected across a battery. The same battery supplies a current…
8 years ago
The nuclear radius of a certain nucleus is 7.2 fm and it has a charge of 1.28×10⁻¹⁷ C.
The nuclear radius of a certain nucleus is 7.2 fm and it has a charge of 1.28x10⁻¹⁷ C. The number…
8 years ago
The most stable particle in Baryon group is
The most stable particle in Baryon group is Options (a) Proton (b) Lamda-particle (c) Neutron (d) Omega-particle Correct Answer: Proton…
8 years ago
On bombarding U²³⁵ by slow neutron, 200 MeV energy is released. If the power output
On bombarding U²³⁵ by slow neutron, 200 MeV energy is released. If the power output of atomic reactor is 1.6…
8 years ago
The ratio of the nuclear radii of elements with mass numbers 216 and 125 is
The ratio of the nuclear radii of elements with mass numbers 216 and 125 is Options (a) (6:5) (b) √216:√125…
8 years ago
The ratio of minimum wavelengths of Lyman and Balmer series will be
The ratio of minimum wavelengths of Lyman and Balmer series will be Options (a) 5 (b) 10 (c) 1.25 (d)…
8 years ago