Current Electricity Part 1

Section: Physics

Question : 50 of 100

Marks: +1, -0

A galvanometer has a 50 division scale.Battery has no internal resistance. It isfound that there is deflection of 40 divisions when R=2400Ω. Deflection becomes 20 divisions when resistance taken fromresistance box is 4900Ω. Then we can conclude :

[Main 10 Apr 2016]

Resistance of galvanometer is 200Ω.
Full scale deflection current is 2mA.
Current sensitivity of galvanometer is 20µA/division.
Resistance required on R.B. for adeflection of 10 divisions is 9800Ω
None of the above

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