To produce a change in deflection of 1.5 mm of the galvanometer of Wheatstone bridge, a change of 5 Ω in the unknown arm of bridge is required. The sensitivity is?
A. 0.2 mm / Ω
B. 0.3 mm / Ω
C. 0.4 mm / Ω
D. 0.5 mm / Ω
Answer:B
To produce a change in deflection of 1.5 mm of the galvanometer of Wheatstone bridge, a change of 5 Ω in the unknown arm of bridge is required. The sensitivity is?
A. 0.2 mm / Ω B. 0.3 mm / Ω C. 0.4 mm / Ω D. 0.5 mm / Ω