The tolerance of a resistor refers to the allowable deviation in its resistance value from the specified nominal or ideal resistance. It indicates the range within which the actual resistance of the resistor can vary from the stated nominal value. Tolerance is expressed as a percentage of the nominal resistance value and is typically indicated … Read more
A Bipolar Junction Transistor (BJT) and a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) are both types of transistors, but they operate on different principles and have distinct characteristics. A BJT is a current-controlled device that relies on the movement of charge carriers (electrons and holes) within a semiconductor material. It consists of three layers of semiconductor material … Read more
What Happens If Neutral Wire Touches an Earth Wire? In electrical systems, the neutral and earth wires serve distinct but essential purposes. The neutral wire provides a return path for the current back to the source, whereas the earth wire (also known as the ground wire) is primarily used for safety purposes, offering a path … Read more
Transistors cannot replace capacitors and resistors in most circuit applications because they serve different fundamental purposes and operate based on distinct principles. Capacitors store electrical charge and are used for energy storage, filtering, coupling signals, and timing circuits. Resistors, on the other hand, control the flow of electric current, dissipate power as heat, set voltage … Read more
A MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is typically considered a unidirectional device. This means that it conducts current primarily in one direction between its drain and source terminals, depending on the polarity of the applied voltage and the mode of operation (enhancement or depletion). In its standard operating mode, the MOSFET conducts current from drain to … Read more
How do we calculate heat produced in a resistor ? The heat produced in a resistor, also known as power dissipation, can be calculated using the formula P=I2⋅RP = I^2 cdot RP=I2⋅R, where PPP is the power in watts (W), III is the current in amperes (A), and RRR is the resistance in ohms (Ω). … Read more
In a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), the drain and source terminals can be interchangeable in terms of physical placement on the semiconductor die. This flexibility arises because the MOSFET’s operation is primarily controlled by the voltage applied to the gate terminal relative to the source terminal. The drain and source are differentiated by their functions: … Read more