moving at a constant speed of 1.95 m/s, the distance between the rails is ℓ, and a uniform magnetic field B→ is directed into the page. (a) What is the current through the resistor (in A)? (b) If the magnitude of the magnetic field is 3.00 T, what is the length ℓ (in m)? m (c) What is the rate at which energy is delivered to the resistor (in W)? w (d) What is the mechanical power delivered by the applied constant force (in W)? w time-varying expressions for the following quantities. (e) the current through the 8.00 Ω resistor R (Use the following as necessary: t. Assume I(t) is in A and t is in s. Do not include units in your answer.) I(t) = A Fapp(t) = N