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Q. Orbital Velocity for Low Earth Orbit
Neglecting air friction an object will sustain a low altitude orbit when the centrifugal force due to its motion in a circular orbit is equal to the gravitational force attracting it to earth.
Note that for these circumstances the centripetal force is provided by gravitation attracting the object toward the earth's centre. The reactive force directed absent from the earth is centrifugal.
Hard Ferromagnetic Substances: Those substances that do not lose their magnetism or removing from magnetic field are known as hard magnetic substance such as steel.
The set of rectangular axes obeying the Newton's laws of motion and used to describe the position of a particle or an event are known as inertial frames of reference.
Draw and discuss volt-ampere characteristics of a tunnel diode. Ans: Volt-ampere characteristics of a tunnel diode: The V-I characteristics of a tunnel diode are shown in fi
state biot savart law and hence calculate magnetic induction due to current in a circular coilof wire at a point on its axias
the force of a capillarity in plant is given by surface tension =density*r*g*h/2.is the equation correct or not
on air pollution
Q. Define Fermi energy. Write down the expression for Fermi Dirac distribution law. Deduce an expression for Fermi energy of a system of free particles. Sol. The Fermi Energy
An iron ring of mean diameter 10 cm is uniformly wound with 2000 turns of wire. When a current of 0.25 A is passed by the coil a flux density of 0.4 T is set up in the iron. F
Must all illuminator have forced ventilation? Usually yes, the exception being which with a massive construction that dissipate heat by transfer or radiation.
It contains 35%- 90% nickels. Higher is the nickel content higher is the permeability and lower is the magnetic saturation of the alloy. MN, CO, and Mo can also be added in trace q
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