Question

In (Figure 1), the rod moves with a speed of 1.7 m/sm/s on rails 33.0 cm apart. The rod has a resistance of 2.1 Ω . The magnetic field is 0.37 T , and the resistance of the U-shaped conductor is 26.0 Ω at a given instant.

Calculate the current in the U-shaped conductor.

Calculate the external force needed to keep the rod's velocity constant at that instant.

What is the reactance of a 6.40 μFμF capacitor at a frequency of 80.0 Hz ?

What is the reactance of a 6.40 μFμF capacitor at a frequency of 3.60 MHz ?

Answer 1