Electrical Engg (EEE) - MCQ Practice Questions

In a network, when using the cut-set method, a cut separates the network into two parts. How many equations are needed for a network with 'b' branches and 'n' nodes to find all branch currents?

A network contains a voltage source Vs = 10V, resistor R₁ = 10Ω in series, and two parallel branches with R₂ = 20Ω and R₃ = 30Ω. What is the Thevenin equivalent resistance (Rth) seen from terminals across R₃?

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 network has 8 branches and 5 nodes. The number of independent mesh equations required is:

For maximum power transfer to a load from a source with Thevenin equivalent (Vth, Rth), the load resistance should be:

In a planar circuit, the relationship between number of nodes (n), branches (b), and independent loops (m) is:

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

The reciprocity theorem states that in a linear bilateral network:

In a circuit, the star-delta transformation is used to:

For a passive linear network, the input impedance looking into terminals is Z(s). If a unit impulse is applied as input, the impulse response h(t) is the:

In mesh analysis, if a circuit has dependent sources, the approach is:

The Norton equivalent of a network is found by:

For a two-port network, when port 2 is open-circuited (I₂=0), the parameter measured is:

In a circuit with mutual inductance between two coils, the coupling coefficient k is defined as:

The cut-set matrix is used in circuit analysis to:

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: