25 Questions
According to Kirchhoff’s current law (KCL), what does the algebraic sum of currents entering a node equal to?
Zero
What does a branch represent in a circuit?
A single element such as a voltage source or a resistor
How many nodes are present in the given circuit?
3
What constitutes a single node in a circuit?
Two nodes connected by a short circuit
What is the point of connection between two or more branches in a circuit called?
A node
In a network with 5 branches and 3 nodes, how many independent loops will there be?
3
What is a loop in a circuit?
A closed path formed by starting at a node
According to Ohm’s law, what is the relationship between voltage, current, and resistance?
V = IR
According to Kirchhoff’s voltage law (KVL), what is the algebraic sum of all voltages around a closed path?
Zero
When are voltage sources considered to be connected in series?
When they have the same polarity
What is the equivalent resistance of multiple resistors connected in series?
The sum of the individual resistances
In a voltage divider with N resistors in series, what is the voltage drop across the nth resistor (Rn)?
$\frac{1}{N}$ of the source voltage v
What is the process of combining resistors in a circuit known as?
Voltage division
When combining two resistors at a time, what can be said about the current in both of them?
It is the same
What happens to the current in parallel resistors connected in a circuit?
It divides between the resistors
What type of semiconductors have an excess of electrons?
N-type semiconductors
What is the equivalent resistance of two resistors in parallel?
Dividend of their resistances
Which material is classified as a good insulator due to its very high resistivity?
Mica
What type of material conducts electrical current but falls between conductors and insulators in its ability to conduct?
Semiconductor
Which element is used in some types of electrical resistors and can be represented by the valence shell and a core with a net charge of +4?
Carbon (C6)
Which compound is an example of a compound semiconductor?
Gallium arsenide
In terms of electrical properties, which material has valence electrons very loosely bound to the atom?
Silver (Ag)
What determines the best conductors in terms of their ability to conduct electrical current?
Valence electrons
Which compound is not a good conductor due to its high resistivity?
Mica
What type of material is characterized by atoms with four valence electrons and falls between conductors and insulators in its ability to conduct electrical current?
Semiconductor
Test your knowledge on circuits analysis and circuits theorems including Kirchhoff’s Laws, series resistors, voltage division, nodes, branches, and loops.
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