A galvanometer has a 50 division scale. Bat- tery has no internal resistance. It is found that there is deflection of 40 divisions when `R = 2400 Omega` . Deflection becomes 20 divisions when resistance taken from resistance box is `4900 Omega`. Then we can conclude :
A
Current sensitivity of galvanometer is `20 muA//` division.
B
Full scale deflection current is 2 mA.
C
Resistance of galvanometer is `200 Omega`.
D
Resistance required on R.B. for a deflection of 10 divisions is `9800 Omega`.
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