Qualcomm Interview Questions, Process, and Tips

Leakage current in CMOS refers to the small amount of current that flows through the transistors when they are in the off state.

• Leakage current occurs due to the imperfect insulation between the source and drain terminals of the transistors.

• It is an undesirable phenomenon as it leads to power dissipation and can affect the performance and reliability of CMOS circuits.

• Leakage current can be categorized into subthreshold...read more

The different terminals of a MOSFET are the gate, source, and drain.

• The gate terminal controls the flow of current between the source and drain.

• The source terminal is where the current enters the MOSFET.

• The drain terminal is where the current exits the MOSFET.

• The gate-source voltage determines the conductivity of the channel between the source and drain.

• Examples of MOSFETs include enhancement-mode and depletion-mode MO

Ohm's law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance.

• Ohm's law is expressed as V = IR, where V is the voltage, I is the current, and R is the resistance.

• It helps in understanding the relationship between voltage, current, and resistance in an electrical circuit.

• For example, if the voltage across a resistor is...read more

The direction of current flow is opposite to the direction of electron flow due to historical convention.

• The concept of current flow was developed before the discovery of electrons.

• Benjamin Franklin proposed the convention of positive charge carriers, which led to the opposite direction of current flow.

• In reality, electrons are negatively charged and flow from the negative terminal to the positive terminal of a power s...read more

An inductor is a passive electronic component that stores energy in a magnetic field when current flows through it.

• Inductors are typically made of a coil of wire wound around a core material.

• They are used in electronic circuits to control the flow of current and store energy.

• Inductors can be found in various applications such as power supplies, filters, and oscillators.

• They are measured in units called henries (H).

• Indu...read more