Basic Electrical Engineering

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Why it matters

Every electronic device, every IoT sensor, every robot runs on electrical principles. Understanding circuits is fundamental to hardware design, embedded systems, and electronics.

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Placement relevance

Essential for core electronics companies (Intel, Qualcomm, Texas Instruments). For CS students doing embedded systems, robotics, or IoT roles. GATE EE/EC has high weightage.

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Prerequisites for

Digital Electronics · Microprocessors · Embedded Systems · Control Systems · Power Electronics · VLSI Design

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Recommended books

Basic Electrical Engineering by D.C. Kulshreshtha · Fundamentals of Electric Circuits by Alexander and Sadiku · Electrical Technology by B.L. Theraja

Using Thevenin's theorem, find the current through 6Ω resistor in the given circuit. Show equivalent circuit diagram.

An AC series RLC circuit has R=10Ω, L=0.1H, C=100μF. Find resonant frequency, impedance at resonance, and quality factor.

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Draw circuit diagrams neatly

Every problem needs a circuit diagram. Label all components, currents, voltages. Clear diagram = easier grading = better marks. Use ruler for straight lines.

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Master network theorems

Thevenin, Norton, Superposition, Maximum Power Transfer — guaranteed 20-25 marks. Practice converting between Thevenin and Norton equivalents.

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Phasor diagrams for AC

AC problems MUST have phasor diagrams showing voltage-current relationships. Draw to scale if possible. Shows you understand phase relationships.