Transistors and diodes obey Ohm's law.
A bulb filament allows passage of 2A current when connected to a 220V supply & that of 1.1A when connected to 110V. Does the filament obey Ohms law or not? Why?
How many bulbs of 8 ohms should be joined in parallel to draw a current of 2A from a battery of 4V? Does this circuit obey Ohm's Law?