Ut
822
Practice Problems 5 :
1. Figure 8.41 shows a circuit diagram containing 12 cells, each of e.mf. 1.5 V and internal resistance 0.25 0
Calculate :
(a) Total internal resistance
- 12 oels
(b) Total e.m.f.
(c) Total external resistance
A 822
(d) Reading shown by the ammeter
122
(e) Current in 12 2 and 8 2 resistors
(f) p.d. across 2.2 resistor
Fig. 8.41
(g) Drop in potential across the terminals of the cell.
[(a) 32, (b) 18 V, (c) 9 12, (d) 1.5 A (e) 0.75 A each (f) 3.30 V (g) 45 V
arted in series to form a hatty This
2202
822
Practice Problems 5 :
1. Figure 8.41 shows a circuit diagram containing 12 cells, each of e.mf. 1.5 V and internal resistance 0.25 0
Calculate :
(a) Total internal resistance
- 12 oels
(b) Total e.m.f.
(c) Total external resistance
A 822
(d) Reading shown by the ammeter
122
(e) Current in 12 2 and 8 2 resistors
(f) p.d. across 2.2 resistor
Fig. 8.41
(g) Drop in potential across the terminals of the cell.
[(a) 32, (b) 18 V, (c) 9 12, (d) 1.5 A (e) 0.75 A each (f) 3.30 V (g) 45 V
arted in series to form a hatty This
2202
Answers & Comments
Explanation:
resistance 0.25 0
Calculate :
(a) Total internal resistance
- 12 oels
(b) Total e.m.f.resistor
Fig. 8.41
(g) Drop in potential across the terminals of the cell.
[(a) 32, (b) 18 V, (c) 9 12, (d) 1.5 A (e) 0.75 A each (f) 3.30 V (g) 45 V
arted in series to form a hatty This
2202
(c) Total external resistance
A 822
(d) Reading shown by the ammeter
122
(e) Current in 12 2 and 8 2 resistors
(f) p.d. across 2.2 resistor
Fig. 8.41
(g) Drop in potential across the terminals of the cell.
[(a) 32, (b) 18 V, (c) 9 12, (d) 1.5 A (e) 0.75 A each (f) 3.30 V (g) 45 V
arted in series to form a hatty This
2202