fuel cells
generator
inductor
cell phone
-- Apply a small, known voltage between the terminals of the device. -- Measure the current through the device with the voltage applied. -- Calculate the resistance of the device. It's (voltage) divided by (current).
A diode does that.
A device with a low resistive load will produce a high current in a series circuit.
A device with a low resistive load will produce a high current in a series circuit.
electric genarator
inductor
generator
inductor
generator
inductor
inductor
generator
An electric Generator.
Any device with an electrical current will create a magnetic field. A tube of wire coils with a current running through it is called a solenoid and it will produce a magnetic field through the inside of the tube, as well as around it... Sorry, not much for physics.