Recent content by sachin

so, hope i can conclude that the given question is wrong, thanks.

the question says "There are two Planets, each with the same surface gravity, but Planet 1 has a greater radius and is less massive then Planet 2. Which of these planets has a greater escape velocity? " (A) Planet 1 (B) Planet 2 (C) Both have the same escape velocity because surface gravity is...

I am trying to get the torque about the point of contact of the ladder on the ground = mg x l/2, but it is not leaving me anywhere

also why do we take the output voltage across the the collector and emitter junction and not across the external load resistance, is the external resistance also called the output resistance of the transistor.

I have a query, while forward biasing the base emitter junction, we give a voltage just more than the barrier potential what is around 0.7 volt, so if we give say 0.9 volt then 0.7 volt is used in breaking the barrier and the rest 0.2 remains for the current to flow, does the PN junction diode...

berkeman thanks for your reply, may i know for the transistor to work why do we need a forward biasing in the base emitter region, cant it be done if we connect just a high voltage battery across the emitter and collector, taking to be a npn transistor, the collector's electrons are pulled by...

how can a transistor behave as a switch in the saturated region when it is in forward bias mode in the saturation region and the collector current may become zero, when a transistor is used as a switch im the satruation in region, it is having maximum current but as it is forward biased as it...

so if a standard 12 child asks if y = x is a line or a plane, what should be the answer ?

did not understand fully, is it like y = x fulfills the equation of a plane in 3d space and a line in 2d space ?

Where did i go wrong in my assumption, is the mistake started when i added the equations or before that also in the post y = (y1/x1) x, z = (z1/x1) x, y + z = (y1/x1) x + (z1/x1) x,

2D line is a two dimensional line what is plotted in xy plane, we have y = mx + c and all as equations.

my concern is to give equation of a line a simpler form than bothering the ratios, what i found out from u is a single equation is always a plane, so y = x is not a 2d line but a plane ?

i have just cross multiplied the terms in the equation of a line in (x-x1)/a = (y-y1)/b = (z-z1)/c , how can i get a plane from there ? as that will mean (x-x1)/a = (y-y1)/b = (z-z1)/c was the equation of a plane, is my assumption correct

Can we say, (y + z ) x1 = (y1 + z1) x is also an equation of a straight line in 3 dimensional space, where (x1,y1,z1) and (x,y,z) are the coordinates of a given point and a variable point respectively on a 3D line that passes through the origin, have seen equation of a straight line in 3...