a) A Hay's bridge bridge uses a standard capacitor of C4 = 0.02 mF and operates at a supply frequency of 600 Hz. Balance is achieved when R2 =0.5ko R3= 2k2, and R4 = 135 n. find the unknown Resistance...

Extracted text: a) A Hay's bridge bridge uses a standard capacitor of C4 = 0.02 mF and operates at a supply frequency of 600 Hz. Balance is achieved when R2 =0.5ko R3= 2k2, and R4 = 135 n. find the unknown Resistance R1 and unknown inducatance L1. ohms. b) ) Draw the block diagram of a measurement system. ii) Explain the variable conversion element of a measurement system with an example. unknown Resistance R1 unknown Inductance L1