Electric Field
advertisement   

Force in the Electric Field


A point charge of 10 nC is located in an electric field. The field exerts a force of 1×10−2 N, horizontally and from left to right. Find:
a) The magnitude and direction of the electric field;
b) If the charge were replaced by a charge of −2 µC. What would be the magnitude and direction of the new force acting on the charge?

The graph represents the magnitude of the electric field produced by a positive point charge Q as a function of the distance to the charge. The Coulomb Constant in a vacuum is \( k_e=9\times 10^9\;\mathrm{\frac{N.m^2}{C^2}} \). Determine:
a) The charge Q;
b) The magnitude of the electric force that acts on a charge q = −1×10−5 C, placed at 2 m of Q;
c) The magnitude of the electric force that acts on a charge q = 1×10−5 C, placed at 1 m of Q.
advertisement