Created by StemPy LabTwo bulbs are marked , and , . They are connected in series across a supply. Treat their resistances as fixed. Which bulb glows brighter, and roughly what powers do they use?
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← A 10 µF capacitor, charged and then disconnected from its battery, is allowed to discharge through a 1 MΩ resistor. How long does it take for the energy stored in the capacitor to fall to half its starting value?Two long straight wires lie in the plane of the page, crossing at right angles at the origin without touching. One runs along the x-axis and carries 10 A in the +x direction; the other runs along the y-axis and carries 10 A in the +y direction, as shown in the figure. Point P is at (5 cm, 5 cm) and point Q is at (-5 cm, 5 cm). The magnetic fields at P and at Q are →
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