Предмет: Физика, автор: asdasd1311

Визначте заряд, що створює електричне поле, потенціал якого на відстані 10 см від заряду становить 90 В.

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Ответы

Автор ответа: svjatoslawnechipor65
0

Ответ:

Дано:

Ф=90 В;

r=10 cм=10*10^-2 м.

Знайти q.

Ф=k*q/r, звідси знаходимо заряд:

q=Ф*r/k=90*10*10^-2/9*10^9=100*10^-11 Кл=1*10^-9 Кл=1 нКл.

Объяснение:

k=9*10^9 В*м/Кл-коефіцієнт Кулона.

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