MCQ Subject: Electric Circuits & Network Theory

In the DC circuit shown, what is the voltage across the 2Ω resistor in the parallel branch with a 3Ω and 6Ω resistor, given a 12V source?

A DC circuit consists of a 4V source, 3Ω and 6Ω resistors in parallel, and a 2Ω resistor in series with the parallel combination. What is the Thevenin voltage equivalent seen at the terminals of the 2Ω resistor?

Three resistors of 20Ω, 30Ω, and 60Ω are connected in parallel. What is the equivalent resistance of the combination?

A DC circuit has a 15V source in series with a 10Ω resistor, and a 30Ω resistor parallels this series combination. What is the Thevenin equivalent resistance?

A DC circuit consists of a 10V voltage source in series with a 5Ω resistor, connected to two 10Ω resistors in parallel. A 10Ω load resistor is connected across the parallel pair. What is the current through the load resistor?

For analyzing an AC circuit, which theorem allows replacement of a complex network with an equivalent voltage source, series impedance, and load?

Which of the following best describes the Superposition Principle in electric circuits?

In an AC circuit with inductive load, the power component responsible for reversing direction twice per cycle without doing actual work is termed as:

A linear circuit consists of a 5V voltage source in series with a 10Ω resistor and a 20Ω resistor in parallel. Find the Thevenin equivalent voltage across the 20Ω resistor.

In the circuit shown, if the currents I1, I2, and I3 are 5 A, 3 A, and 4 A respectively, what is the value of I4? Assume all currents are entering the node.