Question
Which device converts sound waves to electrical
signals?Solution
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.
What will come in place of a?
(6)1.2 × (216 )2.7 × (36)2.7 = 6a
Simplify:
(0.72 ÷ 0.12) − (3/5 × 2.5) + 7/8
(161051)Â -3/5Â = ?
If √7 × √35 = x√5, then find the value of x
Simplify: (16)(3/4) × (8)(2/3)
The value of ‘x’ in the given below equation is.
0.5 Ì… + 0.7 Ì… + 0.9 Ì… + 0.3 Ì… = x
Find the value of 56 × 59 ÷ 514 = ?
(0.09)Â -1.5Â = ?
- Find the value of (256 x 4096)/(400 x 125 x 64)Â = ?
3√4913+ 3√4.913 + 3√0.004913 = ?
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