Applications of Ohm’s Law 

The primary uses of Ohm’s law include: 

1. To determine the voltage, resistance, or current within an electrical circuit. 

2. Ensuring the targeted voltage drop across electronic components. 

3. Employing Ohm’s law in DC ammeters and other DC shunts to redirect the current as needed. 

Limitations of Ohm’s Law 

Below are the constraints of Ohm’s law: 

1. Ohm’s law cannot be utilized for unilateral electrical components such as diodes and transistors since they permit current flow in only one direction. 

2. In the case of non-linear electrical components with characteristics like capacitance and resistance, the ratio of voltage to current may vary over time, rendering Ohm’s law impractical to apply.