Define the following terms related to Electrical Circuits.
A 100 W,230 V lamp is connected in series with a 50W, 150 V lamp across 250 V supply mains. Calculate Voltage across each lamp.
A R-L-C series circuit consists of R=10-ohm, L= 0.1 H and C= 50 μF. Find 1. Impedance 2. Current and 3. Active power, when it is connected to a
Derive the equation of three equivalent star connected resistances in terms of delta connected resistances.
Using Thevenin’s theorem find current in branch BD of the network shown in
Define the following terms in connection with A.C. wave forms.
Three currents are represented by: i1 = 10 sin ωt, i2 = 20 sin (ωt -π/6) and i3 = 30 sin (ωt + π/4). Find magnitude and phase angle of resultant current.
Prove that current through pure inductor is always lagging by 90° to its voltage and power consumed is zero with necessary waveform and phasor diagram.
Derive the relationship of voltages and currents for Star connection in 3- phase a.c. circuit.
Describe an auto transformer with its advantages, limitations and applications.
Prepare list of different parts of D.C. machine and explain any one part with figure.
Calculate the electricity bill amount for a month of March, if 5 bulbs of 40 W for 5 h, 6 tube lights of 60 W for 5 h, a TV of 100 W for 6 h, a washing machine of 400 W for 2 h, a water pump of 0.5 HP for 30 minutes are used per day. The cost per unit is Rs 3.50. Consider 1 HP = 746 watts
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Official Gujarat Technological University (GTU) examination paper and step-by-step solutions for Basic Electrical Engineering (BEE) (Summer 2024, B.E. · Common Engineering, Sem 1). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
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