An unknown resistor is connected to a voltage source as shown. The voltage is controlled by the slider. You can measure the voltage and current by placing the mouse cursor over either meter. Find the unknown resistance. Start
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You are given four unknown parts and are asked to place them one by one into a test circuit. The source voltage in the circuit is controlled by the slider. You can measure the voltage and current by placing the mouse cursor over either meter. Which part obeys Ohm's law?
You are given four unknown parts and are place them obey by one into the circuit as shown. The source voltage is controlled by the slider. Which part obeys Ohm's law?
A light bulb is connect to two ideal batteries in three possible ways. Which arrangement has the light bulb burning the brightest? Place the mouse on the various circuit elements to read their values.
An unknown device, not necessarily a resistor, is connected to an ideal battery as shown. Find the power consumed by this device when the battery voltage is 20 V. Start
An unknown resistor is connected to an AC voltage source as shown. The rms source voltage is controlled by the slider. Find the unknown resistance if current is measured in milliAmp, mA. You can click-drag inside the graph to measure coordinates and place the mouse on a circuit component to obtain readings. Start
An unknown resistor is connected to an AC voltage source as shown. The rms source voltage is controlled by the slider. Find the average power being delivered to the resistor when the rms voltage is 10 V. Assume that the current graph shows units in Ampere, A. You can click-drag inside the graph to measure (x,y) coordinates. Start
