difference and similarity between grav pot due to a point mass and electric pot due to a point charge
both inversely proportional to distance.
grav pot always negative, electric pot can be positive/negative
Define gravitational potential at a point
Work done per unit mass in bringing mass from infinity to a point.
What is meant by an ideal gas
A gas that obeys pV ∝ T at all Pressure (p), Volume (V) and T (which is thermodynamic temperature)
what makes an object travel in a circular path
force needs to be perpendicular to velocity
What do you keep forgetting about geostationary orbit
orbiting from west to east, directly above the Equator
Uses of capacitor
Smoothing circuits
Blocking d.c.
Temporary power supply
Binding energy
energy required to separate to infinity all the nucleons of a nucleus
Mass defect
difference between mass of nucleus and mass of nucleons when nucleons are separated to infinity
Lenz’s law
The direction of the induced EMF is such that it opposes the change that caused it
why is the variation of Q with t exponential in nature
(any two):
charge and current are both directly proportional to voltage
charge is proportional to current
current is the rate of change of charge
(mandatory):
Q is proportional to the rate of change of Q
