rho

Two charges, both with charge +Q, have been placed on the x-axis at x=−a and x=a. Where will the electric field be zero?

Two charges, +Q and −Q, have been placed on the x-axis at x=−a and x=a respectively. a) Where will the electric field be zero? b) Where will the electric potential be zero?

In a given area of space the electric field and the magnetic field are described by the expressions E ⃑=Ek ̂ and B ⃑=Bj ̂ with B= 15.0 mT. Determine the value of E such that a 750-eV electron moving along the positive X-axis is undeflected. 1eV = 1.602176...

Which one of the following statements is true? a) For all matrices A and B, if AB = I then BA = I b) If A is a 3 \times 3 matrix, then det(2A) = 8 det(A). c) For all matrices A and B, det(AB) = det(A) det(B). d) If B is obtained by interchanging two rows...

Let A and B be 3 * 3 matrices, with det(A) = 2, det(B) = 3. Then det(5 A B^{-1}) = a) none of these b) 30 c) 250/3 d) 10/3 e) 2/3

5000000