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I applied via Approached by Company and was interviewed in Feb 2022. There were 3 interview rounds.
DC stands for Direct Current and is a type of electrical current that flows in one direction. A battery is a device that stores chemical energy and converts it into electrical energy.
DC is used in many electronic devices such as computers, televisions, and radios.
Batteries come in many different types such as alkaline, lithium-ion, and lead-acid.
Batteries are commonly used in portable devices such as cell phones, lapto
AC stands for Alternating Current. AC and DC are two types of electrical current with different characteristics.
AC is a type of electrical current that periodically reverses direction.
DC is a type of electrical current that flows in only one direction.
AC is used for power transmission over long distances, while DC is used for electronic devices.
AC voltage can be easily changed using a transformer, while DC voltage cann...
The battery voltage depends on the type of battery and its charge level.
The voltage of a fully charged lead-acid battery is around 12.6 volts.
The voltage of a lithium-ion battery can range from 3.6 to 4.2 volts per cell.
The voltage of a discharged battery will be lower than that of a fully charged battery.
Measuring the voltage of a battery can help determine its charge level and health.
The battery 1 cell voltage depends on the type of battery and its state of charge.
The voltage of a single cell battery can range from 1.2V to 3.7V depending on the chemistry of the battery.
The state of charge of the battery also affects the voltage.
For example, a fully charged lithium-ion battery cell has a voltage of 4.2V while a discharged cell has a voltage of 3.0V.
Similarly, a lead-acid battery cell has a voltage o...
Battery Ah meaning refers to the battery's capacity to store energy over time.
Ah stands for ampere-hour, which is a unit of measurement for the battery's capacity.
It indicates how much current a battery can supply for a certain amount of time.
The higher the Ah rating, the longer the battery will last.
For example, a 12V 100Ah battery can supply 100 amps of current for one hour or 10 amps for 10 hours.
Ah rating is import...
The battery problem refers to issues related to the battery life, performance, and charging of electronic devices.
Battery draining too quickly
Battery not holding charge
Device not charging properly
Overheating during charging
Battery swelling or leaking
A battery checking instrument is a device used to measure the voltage, current, and overall health of a battery.
Battery testers can be handheld or benchtop devices
They can measure the voltage, current, and resistance of a battery
Some testers can also provide a load test to determine the battery's capacity
Examples of battery checking instruments include multimeters, battery analyzers, and battery testers
They are commonl...
I applied via Walk-in and was interviewed before Sep 2020. There were 4 interview rounds.
I appeared for an interview before Jul 2020.
Yes, Infosys is listed on the Indian stock exchanges as well as on the NYSE.
Infosys is listed on the Bombay Stock Exchange (BSE) and National Stock Exchange of India (NSE)
It is also listed on the New York Stock Exchange (NYSE)
Infosys has a market capitalization of over $80 billion as of 2021
I applied via Company Website and was interviewed before Feb 2020. There was 1 interview round.
I applied via Naukri.com and was interviewed before May 2020. There were 3 interview rounds.
I applied via Campus Placement and was interviewed before Sep 2019. There were 5 interview rounds.
OOPs concepts in Java are the fundamental principles of object-oriented programming.
Encapsulation: wrapping data and code into a single unit
Inheritance: creating new classes from existing ones
Polymorphism: using a single interface to represent multiple types
Abstraction: hiding implementation details from the user
Examples: class, object, inheritance, polymorphism, encapsulation
Stack is a LIFO data structure while Queue is a FIFO data structure.
Stack follows Last In First Out (LIFO) principle while Queue follows First In First Out (FIFO) principle.
Stack has two main operations: push and pop while Queue has two main operations: enqueue and dequeue.
Stack is used in recursive function calls, undo/redo operations, and backtracking while Queue is used in breadth-first search, printing tasks in ord...
SQL query to find second highest salary in database
Use ORDER BY and LIMIT to get the second highest salary
Assume ties are allowed and use DISTINCT
Method overloading is having multiple methods with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in its superclass.
Method overloading is done within the same class while method overriding is done in different classes (subclass and superclass).
Method overloading is achieved by changing the number of parameters or the data type of ...
The parent class of all classes in Java is the Object class.
All classes in Java implicitly extend the Object class.
The Object class provides basic methods such as toString(), equals(), and hashCode().
Any class can override these methods to provide custom implementations.
Example: public class MyClass extends Object { ... }
Example: Object obj = new MyClass();
SQL databases are relational and use structured query language, while NoSQL databases are non-relational and use various data models.
SQL databases are based on a fixed schema, while NoSQL databases are schema-less.
SQL databases use tables to store data, while NoSQL databases use various data models like key-value, document, columnar, or graph.
SQL databases are better suited for complex queries and structured data, whil...
I applied via Company Website and was interviewed before Oct 2019. There were 4 interview rounds.
I applied via Naukri.com and was interviewed before Oct 2020. There were 3 interview rounds.
I applied via Naukri.com and was interviewed before Jun 2021. There was 1 interview round.
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