A wire of resistance `R` is divided in 10 equal parts. These parts are connected in parallel, the equivalent resistance of such connection will be

A wire of resistance r is cut into m equal parts. These parts are then connected in parallel . The equivalent resistance of the combination will be

A wire of resistance R is cut into ‘ n ’ equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be

A wire of resistance R is cut into ‘ n ’ equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be