Electrical Engg (EEE) - MCQ Practice Questions

What is the Norton equivalent current (In) for a circuit where the short-circuit current between terminals A and B is 5A?

In a three-phase balanced circuit with line voltage VL = 440V, what is the phase voltage (Vph) in star connection?

A capacitor with capacitance C = 50μF is charged to 200V. What is the energy stored in the capacitor?

A 100Ω resistor is connected across a 50V DC source. What is the power dissipated?

In a circuit with two parallel resistors R₁ = 6Ω and R₂ = 12Ω, what is the equivalent resistance?

In a circuit analysis problem, the voltage across a 5Ω resistor is measured as 25V. Using Ohm's law, what is the current through the resistor?

In nodal analysis, the number of independent node equations required for a circuit with 'n' nodes and one reference node is:

For a linear network, the superposition theorem applies when the network contains:

The Thevenin equivalent resistance (Rth) is found by:

In a bridge circuit at balance condition, the product of opposite resistances are equal. This principle is known as:

A circuit has three meshes. Using mesh current analysis, the total number of mesh current variables are:

A circuit element is said to be active if it:

For a network containing resistances and a single voltage source, if we open-circuit the source terminal, the circuit becomes:

In nodal analysis, the number of independent equations required to solve a circuit with 'n' nodes (excluding the reference node) is:

A voltage source of 10V with internal resistance 2Ω is connected to a load resistance of 8Ω. The maximum power transfer to the load occurs when load resistance is:

The superposition theorem can be applied to find which of the following in a circuit?

In a planar circuit with B branches, N nodes, and L independent loops, the relationship between them is given by:

In mesh analysis, for a circuit with 'm' meshes, the number of independent mesh equations is:

In a linear circuit with three independent loops, the number of independent mesh equations required for complete analysis is:

What is the primary function of a transformer in a power system?