JEE Main 202127 Aug, Morning shiftPhysicsMediumCurrent Electricity150× since 2002
First, a set of n equal resistors of 10 each are connected in series to a battery of emf 20V and internal resistance 10. A current I is observed to flow. Then, the n resistors are connected in parallel to the same battery. It is observed that the current is increased 20 times, then the value of n is ............... .