Define the effective resistance
The edges of a cube consists of equal resistors of resistance R, which are joined at the corners. Let a battery be connected to two opposite corners of a face of the cube. What is the efective resistance?
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An electron is shot into the field with a speed of 4.8 × 106 m s-1 normal to the field. Explain why the path of the electron is a circle. Determine the radius of the circular orbit. (e = 1.6 × 10-19 C, me= 9.1×10-31kg)
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Find the direction of the velocity of these free-spirited otters right after they collide.
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You have 2 capacitors one with capacitance 10.3uF and the other of unknown capacitance. you connect the two capacitors in series with a difference voltage of 355V applied across the capacitors. You discover that, as a result, the unknown capacitor
Three equal point charges, each with charge 1.80 μC, are placed at the vertices of an equilateral triangle whose sides are of length 0.250 m. What is the electric potential energy U of the system? (Take as zero the potential energy of the three
Conducting sphere X is initially uncharged. Conducting sphere Y has twice the diameter of sphere X and initially has charge q. If the spheres are connected by a long thin wire, which of the following is true once equilibrium has been reached?
If the cloud is holding this maximum charge, what is the magnitude of the difference in electric potential between the cloud and the ground?
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