railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Measurement of R/L/C Using Bridge Circuits Measurement of Resistance
Determine the unknown resistance R in the given network, if the galvanometer reads zero.
1
\(R=\frac{P}{SQ} \)
2
\(R=\frac{Q}{P}S \)
3
\(R=\frac{P}{Q}S \)
4
\(R=\frac{P-Q}{S} \)