Matchstick Rocket | CBSE Class 7 | Arisha Ma'am #shorts #ytshorts

Magnetic potential at a point due to a short magnetic dipole of moment 2 Am^(2) at a distance of 100 cm along a line making an angle of 60^(@) with the axis is (mu_(0)=4pixx10^(-7)Wb//Am)

Solve the following: (a) The teacher tells the class that the highest marks obtained by a student in her class is twice the lowest marks plus 7. The highest score is 87. What is the lowest score? (b) In an isosceles triangle, the base angles are equal. The vertex angle is 40°. What are the base angles of the triangle? (Remember, the sum of three angles of a triangle is 180°). (c) Smita’s mother is 34 years old. Two years from now mother’s age will be 4 times Smita’s present age. What is Smita’s present age? (d) Sachin scored twice as many runs as Rahul. Together, their runs fell two short of a double century. How many runs did each one score?

A short bar magnet of magnetic moment 1.5 Am^2 is placed along x-axis at origin. If the magnetic field along line joining origin to point [P(2 sqrt3,2,0)] m is [{sqrt(n) *10^-7} /128 (T)] , Then n should be

Two identical short bar magnets, each having magnetic moment of 10Am^(2) , are arranged such that their axial lines are perpendicular to each other and their centres be along the same straigh line in a horizonetal plane. If the distance between their centres is 0.2m , the resultant magnetic induction at a point midway between them is (mu_(0)=4pixx10^(-7)Hm^(-1))

Below there is a conversation between a teacher and student of class 3rd on the topic Air Teacher:What will happen if there is unclean or polluted air in the whole world Student I:Ma'am will not get proper oxygen to breathe in StudentII:There will be no animals ,insectes etc Teacher:So what we will do? Student III:Ma'am for fresh air we have to plant more or more trees and stop using personal vehicle for traveling this interaction shows that students are good in