Question

Mark the correct statement.

• A. For long parallel conductors carrying steady current, the Biot-Savan law and Lorentz force yield results in accordance with Newtons third law
• B. For long parallel conductors carrying steady current, the Biot - Savart law and Lorentz force, Newtons third law does not hold good
• C. For long parallel conductors carrying time varying currents, the Biot - Savart law and Lorentz force, Newtons third law holds good
• D. Both a and c are correct

Answer 1

Answer: (A)

In general, Newtons third law is not valid for electromagnetic phenomena but for long parallel conductors and steady current, we can prove that Biot-Savart law and Lorentz force give the results in accordance with Newtons third law.