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Electricity 1: Devices, Circuits and Materials

Thomas Kubala

Chapter 7

BATTERIES - all with Video Answers

Educators

Chapter Questions

00:17

Problem 1

In questions 1 to 4, complete the statement with a word or phrase to make the statement correct.
Batteries are rated in voltage and _______________________________ capacity.

Jayashree Behera
Jayashree Behera
Numerade Educator
00:45

Problem 2

In questions 1 to 4, complete the statement with a word or phrase to make the statement correct.
Data for use in charging a battery is found on its _________________________ .

Ashley Volpe
Ashley Volpe
Numerade Educator
00:17

Problem 3

In questions 1 to 4, complete the statement with a word or phrase to make the statement correct.
The electrical condition of a battery is referred to as its ______ of __________ .

Jayashree Behera
Jayashree Behera
Numerade Educator
02:36

Problem 4

In questions 1 to 4, complete the statement with a word or phrase to make the statement correct.
The instrument used to determine specific gravity is the ____________________.

Susan Hallstrom
Susan Hallstrom
Numerade Educator
01:01

Problem 5

In items 5 to 13, select the best answer to make each statement true. Place the letter of the answer in the space provided.
The state of charge of a battery is measured with ____________________
a. a voltmeter.
d. an ohmmeter.
b. an ammeter.
e. a thermometer.
c. a hydrometer.

Khoobchandra Agrawal
Khoobchandra Agrawal
Numerade Educator
02:03

Problem 6

In items 5 to 13, select the best answer to make each statement true. Place the letter of the answer in the space provided.
The maximum possible current output of a cell is determined by the ____________________
a. internal resistance of the cell.
d. separator material in the battery.
b. link connector.
e. load resistance.
c. charging rate.

Khoobchandra Agrawal
Khoobchandra Agrawal
Numerade Educator

Problem 7

In items 5 to 13, select the best answer to make each statement true. Place the letter of the answer in the space provided.
When secondary cells have discharged, they are commonly ____________________
a. recharged.
d. discharged further to 1,150 .
b. discarded.
e. put on a time tester.
c. allowed to stand idle.

Check back soon!
03:37

Problem 8

In items 5 to 13, select the best answer to make each statement true. Place the letter of the answer in the space provided.
When charging a battery at a high rate, the rate must be reduced to the normal rate if the ____________________
a. electrolyte temperature exceeds $100^{\circ} \mathrm{F}$.
b. charger voltage is less than the battery voltage.
c. terminals are not coated.
d. internal resistance increases.
e. cells release gas freely.

Ren Jie Tuieng
Ren Jie Tuieng
Numerade Educator
01:40

Problem 9

In items 5 to 13, select the best answer to make each statement true. Place the letter of the answer in the space provided.
While a cell is being discharged, the electrolyte ____________________
a. becomes more dense.
b. becomes less dense.
c. develops a higher specific gravity.
d. should be replaced.
e. temperature should be checked.

Lottie Adams
Lottie Adams
Numerade Educator

Problem 10

In items 5 to 13, select the best answer to make each statement true. Place the letter of the answer in the space provided.
Rapid deterioration of a battery will take place if ____________________
a. it is allowed to remain charged.
b. the electrolyte level is allowed to remain below the top of the separators.
c. pulsating DC is used to charge it.
d. it is charged at a high rate.
e. it is recharged too often.

Check back soon!
01:21

Problem 11

In items 5 to 13, select the best answer to make each statement true. Place the letter of the answer in the space provided.
A large storage cell, as compared to a small one, has a ____________________
a. higher voltage.
b. longer life.
c. larger current capacity.
d. lower freezing point.
e. higher internal resistance.

Morgan Sizemore
Morgan Sizemore
Numerade Educator
01:21

Problem 12

In items 5 to 13, select the best answer to make each statement true. Place the letter of the answer in the space provided.
The condition of a battery is determined by the ____________________
a. voltage rating.
b. ampere-hour rating.
c. terminal voltage under load.
d. specific gravity of the electrolyte.
e. quantity of electrolyte.

Morgan Sizemore
Morgan Sizemore
Numerade Educator
04:05

Problem 13

In items 5 to 13, select the best answer to make each statement true. Place the letter of the answer in the space provided.
Storage batteries are rated for ampere-hour capacity and ____________________
a. voltage.
d. energy.
d. current.
e. internal resistance.
c. power.

Mederic Rodriguez
Mederic Rodriguez
Numerade Educator
00:37

Problem 14

State the equation for determining the time required to fully discharge a completely charged 90 -ampere-hour, 12 -volt battery, if it delivers a constant current of 15 amperes to a load.
___________________________________________________________________

Keshav Singh
Keshav Singh
Numerade Educator