Teleperformance Interview Questions and Answers

Voltage divider concept is a circuit that divides the input voltage into smaller output voltages using resistors.

• Voltage divider is a simple circuit made up of two resistors in series.

• The output voltage is determined by the ratio of the two resistors.

• Mathematically, Vout = Vin * (R2 / (R1 + R2)).

• It is commonly used in electronic circuits to provide a specific voltage level for components.

• Example: A 10V input voltage divided by two 1k ohm resistors will result in a 5V output v...read more

An operational amplifier (op-amp) is a high-gain electronic voltage amplifier with differential inputs and a single output.

• Op-amps are commonly used in analog circuits for amplification, filtering, and signal conditioning.

• They have a very high input impedance and a very low output impedance.

• Op-amps are often used in instrumentation amplifiers, active filters, and voltage followers.

• Popular op-amp models include the LM741 and the AD827.

• Op-amps can be configured in various ways ...read more

Factors to consider while manufacturing a pen

• Type of ink to be used

• Type of nib and its size

• Material of the pen body

• Design and aesthetics

• Cost of production

• Packaging and marketing

• Environmental impact

Plastics are synthetic materials made from polymers. They have various types and applications.

• Types of plastics include polyethylene, polypropylene, PVC, PET, and polystyrene.

• Polyethylene is used for packaging, polypropylene for automotive parts, PVC for pipes and flooring, PET for bottles, and polystyrene for insulation and packaging.

• Plastics can also be classified as thermoplastics and thermosetting plastics.

• Thermoplastics can be melted and reshaped, while thermosetting pla...read more

Current density is the amount of electric current flowing through a unit area.

• Current density is defined as the amount of electric current flowing through a conductor per unit area.

• It is typically denoted by the symbol J and is measured in Amperes per square meter (A/m^2).

• Higher current density means more current flowing through a smaller area, leading to higher heat generation.

• Current density is an important factor in determining the efficiency and safety of electrical syste...read more

Op amp application involves using operational amplifiers in various electronic circuits for amplification, filtering, signal conditioning, etc.

• Op amps are commonly used in audio amplifiers to increase the amplitude of audio signals.

• They are also used in instrumentation amplifiers for precise measurement of small signals.

• Op amps can be used in active filters to remove unwanted frequencies from a signal.

• They are used in voltage regulators to maintain a stable output voltage des...read more