Física e Química A · Special sitting 2013

Exam 715. 27 exercises, each with its topic and the official solution.

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Exercise Part VII · 1.1

Multiple choice
Exercise Part VII · 1.1 — 1.1. A frequência do sinal B é (A) 4 vezes superior à frequência do sinal A. (B) 1,6 vezes inferior à frequência do sinal A. (C) 1,6 vezes superior à frequência do sinal A. (D) 4 vezes inferior à frequência do sinal A.

Source: IAVE/EduQA — exam 715, Special sitting, 2013

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Exercise Part VII · 1.2

Multiple choice
Exercise Part VII · 1.2 — 1.2. Verificou-se que o sinal A pode ser descrito pela equação U = 2,0 sin (5,0 r × 102 t) (SI) A base de tempo do osciloscópio estava, assim, regulada para (A) 0,5 ms / div (B) 1 ms / div (C) 2 ms / div (D) 5 ms / div

Source: IAVE/EduQA — exam 715, Special sitting, 2013

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