ELECTRICAL POTENTIAL AND CURRENT:E-RSeries CircultParallel Circuits:Based on the circuit drawn below: (Please use your VIRP chart)R = 15 2V=120 VR 20R 5(2a) What is the value for Ry (Total Resistance)?b) What is the total Current Ir?) What is the potential difference Vacross R2?d) If the same 3 resistors were arranged in parallel with the same battery (voltage).would the total Resistance Rfequivialent resistance) for the circult increase.decrease or remain the same? Simple Electromagnetcolled wireBattery +bemerye) A physics teacher takes some of the wire used to create the given circuit and usesit to make an electromagnet by wrapping it around an iron core and connecting it toa voltage source. Describe one way to increase the strength of the electromagnet.

Given data :- R1 = 15 Ω R2 = 20 Ω R3 = 5 Ω V = 120 V

Answered: R 15 2 V= 120 V R2 20 2 Ry= 50

Science

Physics

R 15 2 V= 120 V R2 20 2 Ry= 50

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter29: Direct Current (dc) Circuits

Section: Chapter Questions

Problem 51PQ

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Question

ELECTRICAL POTENTIAL AND CURRENT:
E-R
Series Circult
Parallel Circuits:
Based on the circuit drawn below: (Please use your VIRP chart)
R = 15 2
V=120 V
R 20
R 5(2
a) What is the value for Ry (Total Resistance)?
b) What is the total Current Ir?
) What is the potential difference Vacross R2?
d) If the same 3 resistors were arranged in parallel with the same battery (voltage).
would the total Resistance Rfequivialent resistance) for the circult increase.
decrease or remain the same?

Simple Electromagnet
colled wire
Battery +
bemery
e) A physics teacher takes some of the wire used to create the given circuit and uses
it to make an electromagnet by wrapping it around an iron core and connecting it to
a voltage source. Describe one way to increase the strength of the electromagnet.

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