Parts of a ray's body act as cells in a battery. In a ray living in fresh water the cells are arranged in series, but for a rayliving in salt water the cells are arranged in parallel.WW-(A)V)The following results are for five cells in series. The e.m.f. of the five cells together is 6.9 V.Load resistance / 2Terminal p.d. /VCurrent / A2.23.31.5the internal resistance of one cell is:

E = 6.9 V V = 3.3 V R = 2.2 ohm I =1.5 A

Answered: The following results are for five…

The following results are for five cells in series. The e.m.f. of the five cells together is 6.9 V. Load resistance /2 Terminal p.d./ V Current / A 2.2 3.3 1.5 the internal resistance of one cell is:

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 70PE: Unreasonable Results (a) What current is needed to transmit 1.00 102 MW of power at 10.0kV? (b)...

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Concept explainers

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

Question

Parts of a ray's body act as cells in a battery. In a ray living in fresh water the cells are arranged in series, but for a ray
living in salt water the cells are arranged in parallel.
WW-
(A)
V)
The following results are for five cells in series. The e.m.f. of the five cells together is 6.9 V.
Load resistance / 2
Terminal p.d. /V
Current / A
2.2
3.3
1.5
the internal resistance of one cell is:

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