sebuah toroida dengan jari jari 40 cm dialiri arus listrik 200 mA jika toroida memiliki 5.000 lilitan tentukan medan magnet induksi pada sumbu toroida tersebut​

Most energy in an ecosystem comes originally from_

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)