Actually that's R3.Integral said:Hint: R4 the 10Ω resistor is shorted, it does not contribute anything. Remove it from the circuit all currents and voltages will remain the same.
A series parallel combination circuit is a type of electrical circuit that combines elements of both series and parallel circuits. This means that some components are connected in a series, while others are connected in parallel.
In a series parallel combination circuit, the components that are connected in series have the same current passing through them, while the components connected in parallel have the same voltage across them. This allows for a more complex and flexible circuit design, as the circuit can be divided into smaller sections.
One advantage of a series parallel combination circuit is that it allows for a larger number of components to be connected in a single circuit, as compared to a series or parallel circuit. This also allows for increased flexibility in circuit design. Additionally, series parallel combination circuits can handle higher voltages and currents than a simple series or parallel circuit.
One disadvantage of a series parallel combination circuit is that it can be more complex and difficult to troubleshoot and repair compared to a simple series or parallel circuit. Additionally, the presence of multiple components and connections can increase the chances of a circuit failure.
Series parallel combination circuits are commonly used in many electronic devices, such as computers, televisions, and audio systems. They are also used in power distribution systems and industrial equipment, where a combination of high voltage and current is required.