
Parth Desai 
Lives in : Mumbai, Maharashtra,
INDIA











And yea, I will play
pd2207 48 days ago



Make an account on lichess...it's way better
pd2207 48 days ago



2)Expand LHS and rearranged as follows:
sin^2A + cos^A = 1 ...(1)
2sinAsecA+2cosAcosecA = 2(tanA cotA) = 2secAcosecA(proven below)...(2)
tanA+cotA = (S/C)+(C/S)
=(S^2+C^2)/SC
=1/SC = secAcosecA
sec^2A+cosec^2A = (1/S^2)+(1/C^2)
= (S^2+C^2)/((S^2)(C^2))
=1/(S^2.C^2)
=sec^A.cosec^2A ...(3)
Add them all up
pd2207 77 days ago



On dividing by (x1)(x2) remainder will be of the form ax+b
x=1 => a+b=5
x=2 => 2a+b=7
=>a=2
b=3
=>Remainder = 2x+3
pd2207 77 days ago



If u dont understand the mechanism still, leave it, dont waste ur time too much...Its not in scope anyway
pd2207 79 days ago



The two forces are Lorentz forces, one of which is acting in a direction on left side and another in the opposite directon on the right side of the armature coil, thus facilitating a torque about the central axis of the wire...current is obviously flowing in opposite directions on the 2 ends and the direction of magnetic field is same for both ends, therefore the direction of force are opposite...U can check which direction where by left hand rule
pd2207 79 days ago



I think m stands for mass per unit length and not to be confused with total mass of string right?
pd2207 79 days ago



Definitely not directly proportional atleast
pd2207 80 days ago



Frequency inversely proportional to the root of mass per unit length but since we have to find wrt thickness, we substitute m=(pi*r*r)*(density of material)
So r comes out of root and hence: Its inversely proportional to radius
pd2207 80 days ago


