Answer :
Using the theories of voltage, we got that ratio of N₂ / N₁ become 13.3 if we connect the galvanometer to the primary coil and the battery/switch to the secondary.
A transformer is the device that changes the voltage in the primary, causing a voltage to be induced in the secondary. The expression for this voltage ratio is given by
ΔV₂ = N₂ /N₁ ΔV₁
where N is the number of windings on each side of the coil and V2 and V1 are the voltages in the secondary and primary coil, respectively.
According to question the primary voltage in this instance is 9.0 V and the secondary voltage is 120 V.
ΔV₂ /ΔV₁ = N₂ / N₁
N₂ / N₁ = 120/9
N₂ / N₁ = 13.3
Hence, if we connect the galvanometer to the primary coil and the battery/switch to the secondary, then the ratio of N₂ / N₁ become 13.3
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(Complete question) is:
A 9.0-V battery (with nonzero resistance) and switch are connected in series across the primary coil of a transformer. The secondary coil is connected to a light bulb that operates on the 120 V. a)Determine the ratio of the secondary to primary turns needed for the bell's transformer. b)Determine the ratio of the secondary to primary turns needed for the bells transformer. Ns/Np=?c), In final part how would the effects differ if you connected the galvanometer to the primary coil and the battery/switch to the secondary? write out your answer in a clear and well supported paragraph.
