Electrical Engg (EEE) - MCQ Practice Questions

In a series RLC circuit, the impedance Z is given by:

The power factor of an AC circuit is defined as:

For maximum power transfer in a DC circuit, the load resistance RL should be equal to:

In a purely resistive AC circuit, the phase difference between voltage and current is:

The resonant frequency of a series RLC circuit is given by:

For a node in a circuit applying Kirchhoff's Current Law (KCL), the sum of currents entering equals:

In a purely inductive circuit, the current lags the voltage by:

An ideal voltage source has internal resistance of:

In Thevenin's theorem, what is the Thevenin equivalent voltage (VTh)?

A capacitor of 100 μF is charged to 200V. What is the energy stored in it?

In a three-phase balanced system, if the line voltage is 400V, what is the phase voltage?

Two identical resistors R are connected in parallel. What is the equivalent resistance?

In mesh analysis, what does each mesh equation represent?

What is the time constant (τ) of an RL circuit with R = 100 Ω and L = 0.5 H?

In a circuit with current I = 5sin(314t + 30°) A, what is the RMS value of current?

What is the purpose of nodal analysis in circuit theory?

In a DC circuit, a 12V battery is connected to a resistor network. Using Thevenin's theorem, what is the Thevenin equivalent voltage (Vth) across terminals A and B if the open circuit voltage is measured as 8V?

Which of the following statements about Kirchhoff's Voltage Law (KVL) is correct?

In a bridge circuit (Wheatstone bridge), for the bridge to be balanced, which condition must be satisfied?

Using superposition theorem for a circuit with two voltage sources V₁ = 10V and V₂ = 5V connected in series with a 10Ω resistor, what is the current when considering only V₁?