The vector sum of two force P and Q is minimum when the angle `theta` between their positive directions , is

The vector sum of two vectors vecA and vecB is maximum , then the angle theta between two vector is

Two forces are acting together on an object. The magnitude of their resultant is minimum when the angle between the forces is

The value of the sum of two vectors vecA and vecB with theta as the angle between them is

What is the magnetic force on moving charge when there is an angle theta between the directions of field 'B' and velocity 'v'?

Can we generalize the equation for magnetic force on charge when there is an angle 'theta' between the directions of field ''B'' and velocity ''v''?

The vector product of two non-zero vectors will be minimum when theta is equal to

When two vectors of magnitudes P and Q are inclined at an angle theta , the magnitudes of their resultant is 2P. When the inclination is changed to 180^(@)-theta , the magnitudes of the resultant is halved. Find the ratio of P and Q .