An equilateral triangle ABC has its centre at O as shown in figure three force 10N, 5N,and F are acting along the side Ab, Bc, Ac a magnitude of force F so that the net torque about O is zero will be

O is the centre of an equilateral triangle ABC . F_(1), F_(2) and F_(3) are the three forces acting along the sides AB, BC and AC respectively. What should be the value of F_(3) so that the total torque about O is zero?

ABC is an equilateral triangle with O as its centre vec(F_(1)),vec(F_(2)) " and " vec(F_(3)) represent three forces acting along the sides AB, BC and AC respectively. If the torque about O is zero then the magnitude of vec(F_(3)) is

(a) Three point charges q,-4q and 2q are placed at the vertices of an equilateral triangle ABC of side 'l' as shown in the figure. Obtain the expression for the magnitude of the resultant electric force acting on the charge q. (b) Find out the amount of the work 4one to separate the charges at infinite distance.

An massless equilateral triangle EFG of side 'a' (As shown in figure) has three particles of mass m situated at its vertices . The moment of inertia of the system about the line EX perpendicular to EG in the plane of EFG is (N)/(20) ma^2 where N is an integer . The value of N is _______

Three point masses m,m and 2m are placed on the vertex of an equilateral triangle of side 'a' Another point mass 'm' is placed at the centroid of the triangle as shown in the figure. If the magnitude of net force on the point mass placed at centroid is (KGm^2)/(a^2) then find the value of K (G= universal gravitational constant )

A wires PQRS carrying a current I runs along three edges of a cube of side l as shown in figure. There exists a uniform magnetic field of magnitude B along one of the sides of cube. The magnitude of the force acting on the wire is

Two forces of mangitude F_(1) and F_(2) are acting on an object.The magnitude of the net force F_(n e t ) on the object will be in the range.

Figure shows an equilateral triangle ABC of side l carrying currents as shown, and placed in a uniform magnetic field B perpendicular to the plane of triangle. The magnitude of magnetic force on the triangle is

Figure shows an equilateral triangle ABC of side l carrying currents as shown, and placed in a uniform magnetic field B perpendicular to the plane of triangle. The magnitude of magnetic force on the triangle is

An equilateral triangle of side length l is formed from a piece of wire of uniform resistance. The current I is as shown in figure. Find the magnitude of the magnetic field at its centre O .