Two copper wires A and B have the same length and are connected across the same battery. If RB = 4RA, determine the following. HINT (a) the ratio of their cross-sectional areas AB AA = (b) the ratio of their resistivities PB PA = (c) the ratio of the currents in each wire IB IA =
Two copper wires A and B have the same length and are connected across the same battery. If RB = 4RA, determine the following. HINT (a) the ratio of their cross-sectional areas AB AA = (b) the ratio of their resistivities PB PA = (c) the ratio of the currents in each wire IB IA =
Chapter9: Current And Resistance
Section: Chapter Questions
Problem 42P: What current flows through a 2.54-cm-diameter rod of Pure silicon that is 20.0 cm long, when 1.00103...
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![Two copper wires A and B have the same length and are connected across the same battery. If RB = 4RA
HINT
(a) the ratio of their cross-sectional areas
AB
AA
=
(b) the ratio of their resistivities
PB
PA
=
(c) the ratio of the currents in each wire
IB
IA
determine the following.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2e12c147-d8a1-4ffa-8f65-7b728a42192b%2F53f4f8c8-90c5-40a6-b73b-d6169c9833ec%2F14cyfpk_processed.png&w=3840&q=75)
Transcribed Image Text:Two copper wires A and B have the same length and are connected across the same battery. If RB = 4RA
HINT
(a) the ratio of their cross-sectional areas
AB
AA
=
(b) the ratio of their resistivities
PB
PA
=
(c) the ratio of the currents in each wire
IB
IA
determine the following.
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