IOM 2019, Блиц — Задача 73

OLYMPIAD OF METROPOLISES, Moscow, September 2, 2019 · 2 септември 2019 г.

Условие

In the diagram, each resistor has a resistance of 1 Ohm and each dry cell has an e.m.f. of 1 V and negligible internal resistance. Find the current through resistor AA at the top left corner of the circuit.

A square grid circuit of resistors (rectangles) and dry cells (pairs of short and long lines); the resistor at the top left corner is labelled A.

Решение

Внимание: Непълно решение

В архива няма официално решение на тази задача.

Оригинал в Архива: blitz-en-all-task-final.pdf