A galvanometer has a resistance of 20 Ω and reads full-scale when 0.2 V is applied across it. To convert it into a 10 A ammeter, the galvanometer coil should have a
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0.01 Ω resistor connected across it
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0.02 Ω resistor connected across it
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200 Ω resistor connected in series with it
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2000 Ω resistor connected in series with it