1.

In the above questions, if the polarity of E_(2) is reversed, then

Answer»

current in both ammeters will FLOW in same direction
current in both ammeters will flow in opposite directions
current in both ammeters can be same if `R_(1) gt R_(2)`
current in both can be same if `R_(1) lt R_(2)`

Solution :If POLARITY of `E_(2)` is reversed, then
`I_(2) = (E_(2))/(R_(2))` and `I_(1) = (E_(1) + E_(2))/(R_(1))`
for `I_(1) = I_(2), R_(1) gt R_(2)`


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