(a) Name any two places where it is essential to install electrostatic precipitators. Why it is required to do so ? 
 (b) Mention one limitation of the electrostatic precipitator. 

Dear student,
Two places to install electrostatic precipitator are thermal power plant and automobile vehicles because they produce toxic gases and need to remove particulate matter from their exhaust.
b) Electrostatic precipitator cannot remove particulate matter of size less than 2.5 micrometer in diameter which are are harmful for human health.

Regards