The following statements about a loudspeaker are correct ...
The following statements about a loudspeaker are correct except?
its contains a permanent magnet
sound signal converted to varying current signal enters the speech coil
the current in the speech coil creates a magnetic force on the coil
the magnetic force on the speech coil is uni-directional.
Correct answer is A
No explanation has been provided for this answer.
The phase difference between waves P and q in the diagram above is ...
Calculate the effective resistance between P and Q in the diagram above ...
An object is acted upon by a system of parallel forces causing the object to be in state equili...
A sealed flask contains 600cm3 of air at 27°C and is heated to 35°C at constant pressure. Th...