Suppose that the light bulb in Figure 22.4b is a 60.0-W bulb with a resistance of 287 Ω. The magnetic field has a magnitude of 0.785 T, and the length of the rod is 1.02 m. The only resistance in the circuit is that due to the bulb. What is the shortest distance along the rails that the rod would have to slide for the bulb to remain lit for one-half second?

Final Answer must be whole number or decimal number only!!!

In the figure, ɛ = 78.1 V, Rị = 14.4 N, R2 2.91 H. Immediately after switch S is closed, what are (a) i and (b) iz? (Let currents in the indicated directions have positive values and currents in the opposite directions have negative values.) A long time later, what = 16.7 N, R3 = 39.3 N, and L = %3D

Suppose that the light bulb in Figure 22.4b is a 60.0-W bulb with a resistance of 210 Ω. The magnetic field has a magnitude of 0.247 T, and the length of the rod is 1.30 m. The only resistance in the circuit is that due to the bulb. What is the shortest distance along the rails that the rod would have to slide for the bulb to remain lit for one-half second?

A copper wire with a square cross-section (side length 5.00 µm) is next to an iron wire with a rightward current of 3.00 A. The two wires are parallel over a region of 20.0 cm, where they are 1.60 cm apart. The iron wire produces a magnetic field on the copper wire. The copper wire is connected to a 5.00 V power source, with current directed rightward. Data of copper: resistivity = 1.68 x 10-8 Ohm m; free electron number density = 8.50 x 1028/m3

How much energy is stored in a 2.60-cm-diameter, 12.0-cm-long solenoid that has 200 turns of wire and carries a current of 0.800 A?

B9