15. For the circuits shown in the Figure below the resistors represent the internalresistance of the batteries. Find, in each case: (a) the total e.m.f. across PQ (b)the total equivalent internal resistances of the batteries.4 V5 V3 V10102 V2 V+2 V2 VP(1)16. The p.d's measured across three resistors connected in series are 5V, 7 V and10V, and the supply current is 2A. Determine (a) the supply voltage, (b) the totalcircuit resistance and (c) the values of the three resistors.17. For the circuit shown in Figure below determine (a) the reading on the ammeter,and (b) the value of resistor R.ЗА11.5 A4

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15. For the circuits shown in the Figure below the resistors represent the internal resistance of the batteries. Find, in each case: (a) the total e.m.f. across PQ (b) the total equivalent internal resistances of the batteries. 4V 5 V 3 V 12 10

15. For the circuits shown in the Figure below the resistors represent the internal resistance of the batteries. Find, in each case: (a) the total e.m.f. across PQ (b) the total equivalent internal resistances of the batteries. 4V 5 V 3 V 12 10

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 69AP: Consider the circuit below. The battery has an emf of = 30.00 V and an internal resistance of r =...

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Question

15. For the circuits shown in the Figure below the resistors represent the internal
resistance of the batteries. Find, in each case: (a) the total e.m.f. across PQ (b)
the total equivalent internal resistances of the batteries.
4 V
5 V
3 V
10
10
2 V
2 V
+2 V
2 V
P
(1)
16. The p.d's measured across three resistors connected in series are 5V, 7 V and
10V, and the supply current is 2A. Determine (a) the supply voltage, (b) the total
circuit resistance and (c) the values of the three resistors.
17. For the circuit shown in Figure below determine (a) the reading on the ammeter,
and (b) the value of resistor R.
ЗА
11.5 A4

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