What is the formula to calculate magnitude?
See the introduction to vectors for more about the magnitude of a vector. Formulas for the magnitude of vectors in two and three dimensions in terms of their coordinates are derived in this page. For a two-dimensional vector a=(a1,a2), the formula for its magnitude is ∥a∥=√a21+a22.
What is the magnitude of the electric force?
Coulomb’s Law says that the magnitude of the electric force between two charged objects is directly proportional to the charge on each object (symbolized by q1 and q2) and inversely proportional to the distance between the charges (r).
What is the direction of electric field in pn junction?
Explanation:The direction of electric field is from N-side to P-side in PN junction diode.
What direction does an electric field flow?
The electric field points in the direction of the force that would be on a positive charge. An electron will move in the opposite direction of the electric field because of its negative charge. Therefore it will move toward the left.
Is electricity a flow of electrons?
Electric current is flow of electrons in a conductor. The force required to make current flow through a conductor is called voltage and potential is the other term of voltage. For example, the first element has more positive charges, so it has higher potential.
What materials allow electrons to freely move?
Materials that allow electrons to flow freely are called conductors. Metals have at least one electron that can move around freely, and all metals are conductors.
What can stop the flow of electricity?
Materials that do not allow electricity to pass easily through them are called insulators. Rubber, glass, plastic, and cloth are poor conductors of electricity. This is why electrical wires are covered in rubber, plastic, or cloth. Electricians even wear rubber gloves when they are working with electrical wires.
How do lightning rods use static electricity?
According to the theory, the use of a lightning rod on a building protects the building by preventing the lightning strike. According to the theory, static charges gradually migrate along this pathway to the ground, thus reducing the likelihood of a sudden and explosive discharge.