Final answer:
The force on a charge q in an electric field E is calculated using the formula F = qE. The charge value needs to be in coulombs and the electric field strength in N/C. An example calculation was provided for a -0.250 µC charge in a 7.20 × 105 N/C field, resulting in a force of 0.180 N.
Step-by-step explanation:
The force exerted on a charge by an electric field is given by the equation F = qE, where F is the force in newtons (N), q is the charge in coulombs (C), and E is the electric field strength in newtons per coulomb (N/C). When the question asks, "What is the force on the -1.0nc charge?", we need the electric field strength to proceed with the calculation. In a similar solved problem, the magnitude of the force on a charge q = -0.250 µC in a field strength E = 7.20 × 105 N/C was found using the formula, yielding F = (0.250 × 10-6 C)(7.20 × 105 N/C) = 0.180 N. If the electric field strength is known, the same method can be applied to find the force on the -1.0 nC charge by adjusting the q value accordingly.