A long staight wire carried by a current of 4.7 A is placed in a magnetic field and the magnitude of magnetic force is 0
Posted: Thu Jul 07, 2022 12:03 pm
A long staight wire carried by a current of 4.7 A is placed in a magnetic field and the magnitude of magnetic force is 0.029 N. The magnetic field and the length of the wire are remained unchanged. The magnetic force acting on the wire is changed to 0.011 N while the current is changed to a different value. What is the value of this changed current? (Give your answer in amps but don't include the units.)
c = 3 x 108 m/s €0 = 8.85 x 10-¹2 C² N.m² Chapter 21 magnetic force on moving charge: F=q||||B| magnetic force on straight current: |F|= IL|B| magnetic field produced by long current: |B| Chapter 22 Emotional = UBL &=-NA H047 x 10-7 E=cB Erms magnetic field produced by loop current: Boenter = NHOT 2R Chapter 201 Emar √2 = BA cos 0 Brms u=E² = ¹B² S= Po P A 11 11 - HOI 2πr cu Bmar √2 T.m A