Home
Class 12
PHYSICS
[" Two cells of equal e.m.f.and of inter...

[" Two cells of equal e.m.f.and of internal "],[" resistances "r_(1)" and "r_(2)(r_(1)>r_(2))" are "],[" connected in series.On connecting this "],[" combination to an external resistance "R" ,"],[" it is observed that the potential "],[" difference across the first cell becomes "],[" zero.The value of "R" will be "],[[" (A) "r_(2)(r_(1)>r_(2)),(r_(1)+r_(2))/(2)],[" (B) "r_(1)-r_(2),(r_(1)-r_(2))/(2)]]

Promotional Banner

Similar Questions

Explore conceptually related problems

Two cells of equal e.m.f. E b ut of difference internal resistance r_(1) and r_(2) are connected in parallel and the combination is connected with an external resistance R to obtain maximum power in R. find the value of R

Tow cells with the same emf E and different internal resistances r_(1) and r_(2) are connected in series to an external resistances R . The value of R so that the potential difference across the first cell be zero is

Two cell with the same e.m.f. E and difference internal resistance r_(1) and r_(2) are connected in series to an external resistance R a value of R be selected such that the potential difference as the flow cell E should be zero when

Two batteries of e.m.f. E_(1) and E_(2) and internal resistance r_(1) and r_(2) are connected in parallel. Determine their equivelent e.m.f.

Two cells of emf 2E and E with internal resistance r_(1) and r_(2) respectively are connected in series to an external resistor R (see figure). The value of R, at which the potential difference across the terminals of the first cell becomes zero is

If E is the emf of a cell of internal resistance r and external resistance R, then potential difference across R is given as

Internal resistance of battery of emf 2E is R_1 and battery of emf E is R_2 . If the potential difference across the cell of emf 2E is zero, then value of R is

Two cells of the same e.mf. e but different internal resistances r_(1) and r_(2) are connected in series with an external resistance 'R'. The potential drop across the first cell is found to be zero. The external resistance Ris