Question

Электрический заряд q=3,0*10_-7Кл переносятся из точки электростатического поля с потенциалом ф(фи)1=250В в точку с потенциалом ф2=150В Найдите работу совершенную силам поля

Answer 1

Разность потенциалов - это напряжение(U=|ф2-ф1|), а напряжение равно:
U=A/q
отсюда выразить А

Answer 2

Electric Charge and Work Done by Electric Field

To find the work done by the electric field when transferring an electric charge from one point to another with different potentials, we can use the formula:

W = qΔV

Where: - W is the work done by the electric field - q is the electric charge - ΔV is the change in potential

Given: - Electric charge, q = 3.0*10^-7 C - Initial potential, V1 = 250 V - Final potential, V2 = 150 V

Calculation

Using the formula W = qΔV, we can calculate the work done by the electric field:

ΔV = V2 - V1 ΔV = 150 V - 250 V ΔV = -100 V

W = qΔV W = (3.0*10^-7 C)(-100 V) W = -3.0*10^-5 J

So, the work done by the electric field when transferring the electric charge from a point with a potential of 250 V to a point with a potential of 150 V is -3.0*10^-5 J. The negative sign indicates that work is done by the electric field, reducing the energy of the charge.