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FAQs on Network Theory Formulas for GATE EE Exam - Network Theory (Electric Circuits) - Electrical Engineering (EE)

1. What are some important network theory formulas that are frequently asked in the GATE EE exam?
Ans. Some important network theory formulas that are frequently asked in the GATE EE exam include Ohm's Law, Kirchhoff's Laws, Thevenin's Theorem, Norton's Theorem, and Maximum Power Transfer Theorem.
2. How is Ohm's Law used in network theory?
Ans. Ohm's Law is used to calculate the current flowing through a resistor in a circuit, given the voltage across the resistor and the resistance value. It states that the current (I) flowing through a conductor is directly proportional to the voltage (V) applied across it and inversely proportional to the resistance (R) of the conductor.
3. What are Kirchhoff's Laws and how are they applied in network theory?
Ans. Kirchhoff's Laws are two fundamental laws in network theory - Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL). KCL states that the algebraic sum of currents at any node in a circuit is zero, while KVL states that the sum of voltages around any closed loop in a circuit is zero. These laws are applied to analyze and solve complex electrical circuits.
4. Explain Thevenin's Theorem and its significance in network theory.
Ans. Thevenin's Theorem states that any linear electrical network with voltage and current sources and resistors can be replaced by an equivalent circuit with a single voltage source in series with a single resistor. This theorem is significant as it simplifies complex network analysis by reducing the circuit to a single voltage source and a resistor, making it easier to calculate and analyze.
5. How does the Maximum Power Transfer Theorem relate to network theory?
Ans. The Maximum Power Transfer Theorem states that the maximum power is transferred from a source to a load when the resistance of the load is equal to the internal resistance of the source. In network theory, this theorem is used to determine the optimum load resistance for maximum power transfer in a circuit.
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