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TANGENT GALVANOMETER...

TANGENT GALVANOMETER

A

capacitance

B

current

C

resistance

D

potential difference

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A copper voltameter is connected in series with a tangent galvanometer of 10 turns and 5cm in radius. Calculate the weight of copper is deposited in 30 minutes if the deflection of the galvanometer is 60^(@) . (Horizontal component of earth's field =28A m^(-1)and "E.C.E of copper" =32.8 xx 10^(-8)kgC^(-1) .

A battery of emf 12 V and internal resistance 2Omega is connected in series with a tangent galvanometer of resistance 4Omega . The deflection is 60^@ when the plane of the coil is along the magnetic meridian . To get a deflection of 30^@ , the resistance to be connected in series with the tangent galvanometer is

A tangent galvanometer of 50 turns 8 cm mean radius, is connected in series with a silver voltameter and a battery. If the galvanometer shows a steady deflection of 45^(@) and 0.185 g of silver is deposited in 30 minute, find the horizontal component of the earth's magnetic field (E.C.E. of silver = 0.001118 g/coulomb).

A tangent galvanometer carrying a certain current gave a defelction of 30^(@) . If the galvanometer is taken to another location where the earth's horizontal component of magnetic induction is one thrid of the previous value, The deflection for the same current will be

Two tangent galvanometers, A and B have their number of turns in the ratio 3:1 and diameters of coils in the ratio 4:1 . Explain with reason (i) Which galvanometer has greater reduction factor? (ii) Which galvanometer shows greater deflection, when both are connected in series to a d.c. source?

A cell having an emf of 2 V and internal resistance of 0.5 Omega is sending current through a tangent galvanometer of resistance 4.5 Omega . If another external resistance of 95 Omega is introducedm the deflection of the galvanometer is 45^(@) , calculate the reduction factor fof the galvanometer?