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Match the following Device Conversion of Energy (a) Windmill (i) Chemical Energy to electrical energy (b) Bulb (ii) Kinetic Energy to Electrical Energy (c) Electrical Cell (iii) Sound Energy to Electrical energy (d) Microphone (iv) Electrical Energy to Light Energy
Given below are certain statements regarding the average power dissipated in different types of circuits. Identify the correct option. A. Maximum power dissipation occurs in the case of the resistive circuit and when the LCR circuit is at resonance. B. In the case of a purely inductive circuit, no power is dissipated. C. In the case of the RC circuit, power is dissipated in resistor and capacitor both.
In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident? 1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter. 2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters. 3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit. Select the correct answer using the code given below :
Determine $${I_{\text{N}}}$$ for the circuit consisting of VS, R1, R2 and R3 shown in the given circuit.
Circuit Theorems and Conversions mcq question image
For the given circuit, find VTH for the circuit external to RL.
Circuit Theorems In Ac Analysis mcq question image
Find the Norton circuit, that is, IIN and RN, for the circuit given below.
Circuit Theorems and Conversions mcq question image
Referring to the given circuit, find ZTH for the part of the circuit that is external to RL.
Circuit Theorems In Ac Analysis mcq question image
For the circuit shown, determine ZTH for the portion of the circuit external to RL.
Circuit Theorems In Ac Analysis mcq question image
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: Transformers can also be used for isolation, where the voltage in equals the voltage out, with separate coils not electrically bonded to one another. B: Transformers are most commonly used for increasing low AC voltages at high current (a step-up transformer) or decreasing high AC voltages at low current (a step-down transformer) in electric power applications. C: It was discovered in 1831. D: A transformer is a passive electrical device that transfers electrical energy from one electrical circuit to another.
Principle: A person who voluntarily takes a decision to do something after appreciating the risk involved in such act and then receives an injury, will not be entitled to get any compensation.
Facts: 'X', an electrical engineer, was invited by his friend 'Y', to the factory where he was employed. While they were in the factory, 'Q' a worker in the factory informed 'Y' about some short-circuit in the power room. Hearing this, 'Y' asked 'X' to stay in the office room and rushed to the power room. 'X' however, decided to follow 'Y'. 'X' noticed that if the power supply through a particular electric line could be disconnected, the electrical leakage could be stopped which would prevent further damage. Suddenly 'X' decided to pullout the wire manually even though it was risky. This resulted in a blast in which both 'X' and 'Y' got injured. 'X' had to spend Rs. 1 lakh at the hospital for his treatment. 'X' wants to file a suit for compensation from the management of the factory. Will he succeed?