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What is the full form of PCB?
Picture Circuit Board
Printed Circuit Board
Printed Control Board
Picture Control Board
Printed Circuit Board
A Printed Circuit Board (PCB) is a laminated board used in electronics to mechanically support and electrically connect electronic components. It uses conductive tracks, pads, and other features etched from copper sheets laminated onto a non-conductive substrate.
A Printed Circuit Board (PCB) is a laminated board used in electronics to mechanically support and electrically connect electronic components. It uses conductive tracks, pads, and other features etched from copper sheets laminated onto a non-conductive substrate.
A PCB is like a city's road map; the roads (copper traces) allow traffic (electrons) to travel between various buildings (electronic components) to complete a specific task.
P-C-B: Providing Circuit Backbone.
V=IтЛЕR тАФ Ohm's Law, representing the voltage drop across PCB copper traces with resistance R
P=I2тЛЕR тАФ Power dissipation formula representing heat loss in circuit tracks
The PCB functions by utilizing a non-conductive substrate (usually FR-4 glass epoxy) to isolate copper pathways. These pathways connect components through soldering, facilitating the flow of electric current according to Ohm's Law, defined as V=IтЛЕR. The layout design ensures that signals are routed correctly without short-circuiting.
PCBs eliminate the need for bulky point-to-point wiring.
Common substrate material is FR-4, which is flame-retardant.
Copper cladding is the conductive layer used for circuitry.
Modern PCBs can have multiple layers (multi-layer boards) to increase density.
Compact size and space saving
High reliability and consistency
Easy for automated mass production
Hard to repair once damaged
Initial design and prototyping costs are high
Consumer electronics like smartphones and laptops
Automotive control systems and medical diagnostic equipment
FR-4 is the most common NEMA grade designation for glass-reinforced epoxy laminate.
Wrong options like 'Picture Circuit Board' are linguistic distractors that misuse technical terminology.
B is correct тАФ Printed Circuit Board is the industry-standard term for the physical base used to mount and interconnect electronic components.
In competitive exams, always distinguish between 'Circuit' (the path for current) and 'Control' (the logic/governance) when dealing with hardware terminology.