Question 72Electricity & Electronics - 1st Asst/Chief

The correct answer is D) ohmmeter or transistor tester. To check the performance of a transistor removed from its circuit, an ohmmeter or a dedicated transistor tester should be used. This is because a transistor is a semiconductor device, and its functionality can be evaluated by measuring its resistance and checking if it is functioning properly as a switch or amplifier. The other options are incorrect because an impedance meter is used to measure the impedance of a component, which is not the primary characteristic of a transistor, and a sensitive potentiometer is used to measure small voltages, which is also not the appropriate tool for testing a transistor.