A moving coil galvanometer is converted ...

A moving coil galvanometer is converted into an ammeter reads upto `0.03 A` by connecting a shunt of resistance `4r` across it and ammeter reads up `0.06 A`, when a shunt of resistance `r` is used. What is the maximum current which can be sent through this galvanometer if no shunt is used ?

`0.01A`

`0.02A`

`0.03A`

`0.04A`

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