При каком значении силы тока (А) части цепи, где сопротивление 5 Ом, за 10 с выделится 50 Дж энергии?

  1. 2
  2. 1
  3. 0,5
  4. 1,2

📝 Detailed explanation

Q = I²·R·t → I² = Q / (R·t) = 50 / (5·10) = 1 → I = 1 А.
7 / 16 (44%)
Question 7 of 16
← Previous → Next Space — Show answer

🎯 Take a test on the topic «Тест по физике Работа и мощность электрического тока 8 класс»

This topic contains 16 questions. Test your knowledge!

🔐 Log in to take the test

📚 All tests by subject «Физика»

View all collections and topics in Физика

Go to subject →

Report an error

Answers are unavailable

This test collection is closed. To get full access, please purchase 🌟 premium

Contact by email