Microphone: Converts a sound wave into an electrical signal. Loudspeaker: Converts an electrical signal into sound waves. Headphone: Converts electrical energy into mechanical energy to produce sound. Amplifier: • It is used to change the amplitude of a signal. • The purpose of an amplifier is to produce an output signal larger than that of the input signal. • It is used to convert Direct current into Alternate Current.
Six numbers are arranged in decreasing order. The average of the first five numbers is 40, and the average of the last five numbers is 35. What is the d...
The numerator of a fraction is 9 less than its denominator. If the numerator is decreased by 4 and the denominator is increased by 2, then the denominat...
Which number must be multiplied with 2352 to transform it into a perfect square?
Find the largest three-digit number that leaves '3', '4' and '5' as remainder when it is divided by '7', '8' and '9', respectively.
When a number is divided by 114, remainder is 82. What will be the remainder when the cube of the number is divided by 19?
What is the average of first 32 multiples of 3.2?
The cube of the difference between two given natural numbers is 1728, while the product of these two given numbers is 108. Find the sum of these two giv...
3245.34 + 923.5 + 23.5 =?
Sum of squares of three consecutive numbers is 1454. Find the sum of first and third number.
Three-fifths of Rahul's salary is equal to Priya's salary, and two-thirds of Priya's salary is equal to Raj's salary. If the sum of their salaries is â‚...
