engineering recuitment NHPC JE & THDC JE 2023 Mock Test Electrical and Electronics Measurements Measurement of R/L/C Using Bridge Circuits
The bridge shown in figure has Z1 = 50 ∠10° Ω, Z2 = 10 ∠0° Ω, Z3 = 150 ∠-10° Ω. For what value of Z4 the bridge will be balanced?
1
30 ∠10° Ω
2
30 ∠-20° Ω
3
30 ∠20° Ω
4
30 ∠0° Ω