| UNICAMP 2026 | Q61 - DE FORMA SIMPLIFICADA, O COMPORTAMENTO DE UMA BATERIA PODE SER MODELADO

I am Felipe Filatte, a teacher and pedagogical coordinator, specializing in ENEM and university entrance exams. Here you will find commented solutions, focusing on understanding the reasoning and gaining confidence in the exam. 🎁 FREE GIFT FOR THOSE PREPARING FOR THE ENEM ENEM TRI Calculator Spreadsheet https://docs.google.com/spreadsheets/... STATEMENT Text for questions 60, 61 and 62. Batteries are fundamental in the modern world, being the portable energy source that powers devices such as cell phones and laptops, electric vehicles, and renewable energy storage systems. Two key characteristics of a battery are its electrical charge capacity, expressed in milliampere-hours (mAh), and the energy it stores, usually given in watt-hours (Wh). In a simplified way, the behavior of a battery can be modeled with an ideal source of electrical potential difference Ub in series with a resistor of resistance Rb. In this way, the device powered by the battery can often be represented by a resistor with resistance R. In the situation exemplified in the figure, the potential difference registered by the voltmeter is: Figure data: Ub = 3.6 V Rb = 1.2 Ω R = 6.0 Ω A) 0.6 V. B) 3.0 V. C) 3.6 V. D) 4.3 V. Answer: ✅ Alternative B #unicamp #unicamp2026 #commentedquestions #physics #electrodynamics #electricalcircuits #battery #internalresistance #potentialdifference #voltage #resistors #entranceexams #medicine #professorfilatte #enem #tri