Electrical Circuits Exam Prep
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Electrical Circuits Exam Prep
English 10 leveled MCQs Free
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10 marks Long answer
In a series RLC circuit, R=1 Ohm, L=0.25H and C=1.33F. A dc voltage of 10V is applied at t=0. Obtain i(t)?
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i(t) can be obtained by solving the differential equation for the circuit.
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10 marks Long answer
In a series RLC circuit, R=6 ohms, L=2 H, C=2 F. A DC voltage of 50 V is applied at t=0. Obtain the expression for i(t) using differential equation approach.
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Use the second-order differential equation to find i(t) as a function of time.
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10 marks Long answer
Determine Average & RMS Value, Form Factor & Peak Factor for Triangular Wave Form.
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Average value = (2/3) * Peak, RMS value = Peak / √3, Form Factor = RMS/Average, Peak Factor = Peak/RMS.
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4 marks Medium answer
Express the symmetric and reciprocity condition of a network in terms of transmission parameters.
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Symmetry condition: A = D, Reciprocity condition: AD = BC in transmission parameters.
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4 marks Medium answer
Find the rms value of the voltage waveform of Figure shown below.
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The rms value is calculated based on the area under the voltage-time graph.
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4 marks Medium answer
Find C which results in resonance in the circuit shown in Figure when ω=5000rad/s.
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C can be calculated using the resonance condition: C = 1 / (ω^2 * L).
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2 marks Short answer
Explain the conversion of star to delta and vice-versa
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The conversion involves using the formulas: R_delta = (R_star * R_star) / (R_star + R_star) for each resistor.
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2 marks Short answer
Define Cycle, Time Period.
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A cycle is one complete waveform, and the time period is the duration of one cycle.
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2 marks Short answer
Draw the circuit diagram of Swinburne's Test.
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The circuit diagram includes a DC source, a load, and a wattmeter.
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2 marks Short answer
What is the torque equation for a 3-phase induction motor?
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The torque equation is T = (P * Φ * I) / (2 * π * n), where P is the number of poles, Φ is the flux, and I is the current.
The full exam-length answer is in the app.
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