0
using the "dot product" formula, you can find the angle. where |a| denotes the length (magnitude) of a. More generally, if b is another vector : where |a| and |b| denote the length of a and b and θis the angle between them. Thus, given two vectors, the angle between them can be found by rearranging the above formula: : :
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Deduce an expression for the torque develop by the armature of a dc motor?
The torque developed by the armature of a DC motor can be expressed as: T = k * Ia * Φ where T is the torque, k is a constant factor, Ia is the armature current, and Φ is the magnetic flux in the motor.
Magnitude direction point of application and line of action are the four components of force?
Magnitude is the strength of the force, direction is the way in which the force is applied, point of application is where the force is applied on an object, and line of action is the path along which the force acts. All these components are essential in fully describing a force.
Is torque is a scalar or a vector quantity?
Torque is a vector quantity because it has both magnitude (how strong the force is) and direction (the axis about which the force is applied).
If a book is pushed by 10N and the friction is 8N what is the resultant force?
In fact, there is an infinite number of answers because force is a vector, meaning that it has a magnitude and an orientation. For example, if someone pushes horizontaly onto the book (10N) and the friction is 8N in the opposite direction, the resultant force is 2N. But if the book is pushed at an angle, the resultant force changes.
Is tension a scalar or vector?
tension is a vector!(At first I thought it was a scalar too but this afternoon it was in our physics quiz,I answered scalar but I got it wrong because tension is a vector).this is the explanation:tension is the force producing such deformation.anything with force is a vector.Force always has direction.
What is a characteristic of a vector?
A characteristic of a vector is that it has both magnitude and direction. Vectors are often represented by an arrow, with the length of the arrow indicating the magnitude and the direction of the arrow indicating the direction of the vector.
What is the unit of torque?
the unit of torque is NM.Torque has dimensions of force times distance. Official SI literature suggests using the unit newton metre (N·m) or the unit joule per radian.[8] The unit newton metre is properly denoted N·m or N m.Torque, moment or moment of force is the tendency of a force to rotate an object about an axis.The magnitude of torque depends on three quantities: the force applied, the length of the lever arm[2] connecting the axis to the point of force application, and the angle between the force vector and the lever arm. In symbols:whereτ is the torque vector and τ is the magnitude of the torque,r is the displacement vector (a vector from the point from which torque is measured to the point where force is applied), and r is the length (or magnitude) of the lever arm vector,F is the force vector, and F is the magnitude of the force,× denotes the cross product,θ is the angle between the force vector and the lever arm vector.
Deduce an expression for the torque develop by the armature of a dc motor?
The torque developed by the armature of a DC motor can be expressed as: T = k * Ia * Φ where T is the torque, k is a constant factor, Ia is the armature current, and Φ is the magnetic flux in the motor.
What is equal to force perpendicular?
Force perpendicular is equal to the force component that acts perpendicular to a surface or object. It is calculated by multiplying the force magnitude by the sine of the angle between the force vector and the direction perpendicular to the object.
A force vector describes what two things about a force?
A force vector describes both the magnitude (strength) and the direction of a force.
What is the magnitude of the resultant force when forces of magnitude are combined?
The magnitude of the resultant force when forces are combined is determined by vector addition. It is calculated using the Pythagorean theorem for two perpendicular forces or the parallelogram method for forces acting in different directions. The resultant force represents the combined effect of all the individual forces.
Is force scalar?
No, force is a vector quantity because it has both magnitude and direction. Scalars have only magnitude and no specific direction.
If Refers To The Size Or Strength Of The Force?
The "size" of a vector quantity - such as a force - is often called a MAGNITUDE.
A force has both what?
A force has both magnitude, which represents its strength, and direction, which indicates where the force is applied.
What is magnitude in a vector?
Magnitude in a vector refers to the size or length of the vector, which can be calculated using the Pythagorean theorem in two or three dimensions. It provides information about the overall intensity or strength of the vector's quantity, regardless of its direction. Additionally, the magnitude of a vector is always a positive value.
Why does the work is scalar quantity?
Work is a scalar quantity because it only has magnitude and no direction. The amount of work done is determined by the force applied and the distance over which the force is exerted, without considering the direction of the force.
Is a force scalar or vector?
It's a vector, and I believe it always points upward.
