In a network as shown in the figure the potential difference across the resistance 2R (the cell has an emf of E and has no internal resistance) :-

2E
$\frac{4 E}{7}$
$\frac{E}{7}$
E

Question

In a network as shown in the figure the potential difference across the resistance 2R -the cell has an emf of E and has no internal resistance- -2Edisplaystyle frac-4E-7-displaystyle frac-E-7-E

Toppr Admin · Accepted Answer

Total resistance of circuit is Rt-R-2R-4R2R-4R-7R3

In a network as shown in the figure the potential difference across the resistance 2R (the cell has an emf of E and has no internal resistance) :-2E4E7E7E

Total resistance of circuit is Rt=R+2R.4R2R+4R=7R3

In a network as shown in the figure the potential difference across the resistance 2R (the cell has an emf of E and has no internal resistance) :-

2E
$\frac{4 E}{7}$
$\frac{E}{7}$
E

Total resistance of circuit is $R_{t} = R + \frac{2 R .4 R}{2 R + 4 R} = \frac{7 R}{3}$