The current through an ideal current source is independent of the voltage across it. The equation describing a current source is: i = I , for example: i = 1 A .

Sal graphs the following system of equations and solves it by looking for the intersection point: y=7/5x-5 and y=3/5x-1.

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The positive sign for current corresponds to the direction a positive charge would move. In metal wires, current is carried by negatively charged electrons, so the positive current arrow points in the opposite …

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Ohm's Law is V = IR, where V = voltage, I = current, and R = resistance. Ohm's Law allows you to determine characteristics of a circuit, such as how much current is flowing through it, if you know the …

The reason current stays the same in all three resistors is because of conservation of charge. When current passes through a resistor, the resistor absorbs the energy from the electrons passing through …

Current is the flow of charge. Copper and silver atoms have loose electrons, making them good conductors. Current is measured by counting charges passing through a boundary per second. It …

The current in a diode is a smooth exponential curve with no sudden jumps. When you look at the diode curve at a scale where you see the "sudden" rise at 0.6v the current curve below 0.6v looks perfectly …

Current is the rate of flow of charge, and voltage measures the energy transferred per unit of charge. We can insert these definitions into the equation for power: