Answer number 18 and 22 18. The ammeter shown in Figure P28.18 reads 2.00 A.Find I1, I2, and Ɛ.7.00 N15.0 V5.00 NA412.00 N10Figure P28.1822. (a) Using Kirchhoff's rules, find the current in each re-sistor shown in Figure P28.22 and (b) find the potentialdifference between points c and f. Which point is at thehigher potential?4.00 kQdR370.0 V60.0 V80.0 VR23.00 kN2.00 k2R1Figure P28. 2211

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18. The ammeter shown in Figure P28.18 reads 2.00 A. Find I, 12, and Ɛ. 7.00 N 15.0 V 5.00 N A 41 2.00 N Figure P28.18

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 60PE: Integrated Concepts (a) What energy is dissipated by a lightning bolt having a 20,000-A current, a...

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Question

Answer number 18 and 22

18. The ammeter shown in Figure P28.18 reads 2.00 A.
Find I1, I2, and Ɛ.
7.00 N
15.0 V
5.00 N
A
41
2.00 N
10
Figure P28.18
22. (a) Using Kirchhoff's rules, find the current in each re-
sistor shown in Figure P28.22 and (b) find the potential
difference between points c and f. Which point is at the
higher potential?
4.00 kQ
d
R3
70.0 V
60.0 V
80.0 V
R2
3.00 kN
2.00 k2
R1
Figure P28. 22
11

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