Electronics guide: Diode, Capacitor, Arduino Platform, and Electronics Store
A variable resistor, also known as a potentiometer or rheostat depending on its specific design, serves the function of adjusting resistance within an electronic circuit. Its primary role is to provide a variable resistance that can be manually adjusted to control voltage levels, current flow, or signal amplitude. This adjustability allows for precise tuning of … Read more
A resistor and a Zener diode serve different functions in electronic circuits. A resistor is a passive component that opposes the flow of electric current, converting electrical energy into heat. It is used to control current flow, set voltage levels, or divide voltages in a circuit. A Zener diode, on the other hand, is a … Read more
A resistor affects current in a circuit by limiting its flow according to Ohm’s law, V = IR, where V is voltage, I is current, and R is resistance. When current passes through a resistor, it experiences a voltage drop proportional to the current flowing through it and the resistance value. Therefore, while a resistor … Read more
A transducer and a sensor are related but distinct devices in the field of measurement and control systems. A transducer is a device that converts one form of energy or physical quantity into another. It can convert various types of energy, such as electrical, mechanical, thermal, or optical, into signals that can be measured or … Read more
Having more than one resistor in a circuit serves several purposes depending on the circuit’s design requirements and functionality. One common reason is to divide voltage effectively across different parts of the circuit. By placing resistors in series, each resistor drops a portion of the total voltage supplied by the power source. This voltage division … Read more
Using an operational amplifier (op-amp) as a driver circuit for a MOSFET is a common practice in electronic design. Op-amps are versatile devices capable of providing precise control over voltage levels and currents, making them suitable for driving MOSFETs effectively. In this configuration, the op-amp ensures that the gate of the MOSFET receives the appropriate … Read more
MOSFETs are often referred to as voltage-controlled devices because the primary mechanism for controlling the current through them is the voltage applied to the gate terminal relative to the source terminal. In a MOSFET, the gate-source voltage (V_GS) determines the electric field across the gate oxide, which in turn controls the channel conductivity between the … Read more
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