The current in the coil of inductance 5H decreases at the rate of 2 A/s
The current in the coil of inductance 5H decreases at the rate of 2 A/s. The induced e.m.f is Options…
7 years ago
Physics
The ratio of the numerical value of the average velocity and average speed
The ratio of the numerical value of the average velocity and average speed of a body is always Options (a)…
7 years ago
If a magnetic substance is kept in a magnetic field, then which of the following
If a magnetic substance is kept in a magnetic field, then which of the following is thrown out Options (a)…
7 years ago
A thin wire of resistance 4 ohm is bent to form a circle. The resistance across
A thin wire of resistance 4 ohm is bent to form a circle. The resistance across any diameter is Options…
7 years ago
The minimum wavelength of X-rays emitted by X-ray tube is 0.4125Å
The minimum wavelength of X-rays emitted by X-ray tube is 0.4125 Å. The accelerating voltage is Options (a) 30 kV…
7 years ago
Two sound waves of wavelengths 5m and 6m formed 30 beats in 3 seconds
Two sound waves of wavelengths 5m and 6m formed 30 beats in 3 seconds. The velocity of sound is Options…
7 years ago
Electric potential at any point is V= -5x +3y + √(15) z. Then the magnitude of electric
Electric potential at any point is V= -5x +3y + √(15) z. Then the magnitude of electric field is Options…
7 years ago
If force is proportional to square of velocity, then the dimension of proportionality
If force is proportional to square of velocity, then the dimension of proportionality constant is Options (a) MLT⁰ (b) MLT⁻¹…
7 years ago
Two liquid drops having diameters of 1 cm and 1.5 cm. The ratio of excess
Two liquid drops having diameters of 1 cm and 1.5 cm. The ratio of excess pressure inside them is Options…
7 years ago
A charge of 40 µC is given to a capacitor having capacitance C=10 µF
A charge of 40 µC is given to a capacitor having capacitance C=10 µF. The stored energy in erg is…
7 years ago