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souvik101990
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Joined: 19 Mar 2012
Last visit: 11 Nov 2025
Posts: 4,312
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Location: United States (WA)
Concentration: Leadership, General Management
Schools: Ross '20 (M)
GMAT 1: 760 Q50 V42
GMAT 2: 740 Q49 V42 (Online)
GMAT 3: 760 Q50 V42 (Online)
GPA: 3.8
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Expert reply
30 Apr 2018, 07:13
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In the early 19th century, significant advancements in the field of electricity paved the way for the development of the electric telegraph. The first major breakthrough came in 1800 when Italian physicist Alessandro Volta invented the voltaic pile, the first chemical battery that could produce a steady electric current. This innovation allowed for more systematic experiments with electricity. A second milestone occurred in 1820, when Danish physicist Hans Christian Oersted demonstrated that electric currents create magnetic fields, an essential principle of electromagnetism. These discoveries spurred inventors across Europe and America to explore their applications in communication technology.
In England, Sir William Cooke and Sir Charles Wheatstone designed a telegraph system utilizing multiple magnetic needles that could point to letters on a board, significantly enhancing message clarity. Their design was quickly adopted for railroad signaling, improving communication speed and safety. Meanwhile, in the United States, Samuel Morse, initially a painter, became fascinated with electromagnetism after a sea voyage conversation. By the mid-1830s, aided by Leonard Gale and Alfred Vail, Morse developed a simpler, more efficient single-wire telegraph system. His design, which utilized a single key to complete the circuit, streamlined the transmission process and reduced installation costs, making it practical for widespread use.
Which of the following statements is supported by information in the passage?
A. The invention of the battery was the strongest contributor to the development of the electric telegraph.
B. Cooke and Wheatstone’s five-needle device was quickly adopted around the world as the preferred system for railroad signaling.
C. Morse is singularly credited to have produced the first single circuit electric telegraph.
D. The discovery of electromagnetism advanced the scientific community to invent the first electric telegraph.
E. Most historians attribute the invention of the electric telegraph exclusively to the American team of Morse, Gale, and Vail.
In England, Sir William Cooke and Sir Charles Wheatstone designed a telegraph system utilizing multiple magnetic needles that could point to letters on a board, significantly enhancing message clarity. Their design was quickly adopted for railroad signaling, improving communication speed and safety. Meanwhile, in the United States, Samuel Morse, initially a painter, became fascinated with electromagnetism after a sea voyage conversation. By the mid-1830s, aided by Leonard Gale and Alfred Vail, Morse developed a simpler, more efficient single-wire telegraph system. His design, which utilized a single key to complete the circuit, streamlined the transmission process and reduced installation costs, making it practical for widespread use.
Which of the following statements is supported by information in the passage?
A. The invention of the battery was the strongest contributor to the development of the electric telegraph.
B. Cooke and Wheatstone’s five-needle device was quickly adopted around the world as the preferred system for railroad signaling.
C. Morse is singularly credited to have produced the first single circuit electric telegraph.
D. The discovery of electromagnetism advanced the scientific community to invent the first electric telegraph.
E. Most historians attribute the invention of the electric telegraph exclusively to the American team of Morse, Gale, and Vail.
souvik101990
Expert
Alum
Joined: 19 Mar 2012
Last visit: 11 Nov 2025
Posts: 4,312
Own Kudos:
Given Kudos: 2,326
Location: United States (WA)
Concentration: Leadership, General Management
Schools: Ross '20 (M)
GMAT 1: 760 Q50 V42
GMAT 2: 740 Q49 V42 (Online)
GMAT 3: 760 Q50 V42 (Online)
GPA: 3.8
WE:Marketing (Non-Profit and Government)
Products:
Expert reply
30 Apr 2018, 07:13
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Official Solution:
In the early 19th century, significant advancements in the field of electricity paved the way for the development of the electric telegraph. The first major breakthrough came in 1800 when Italian physicist Alessandro Volta invented the voltaic pile, the first chemical battery that could produce a steady electric current. This innovation allowed for more systematic experiments with electricity. A second milestone occurred in 1820, when Danish physicist Hans Christian Oersted demonstrated that electric currents create magnetic fields, an essential principle of electromagnetism. These discoveries spurred inventors across Europe and America to explore their applications in communication technology.
In England, Sir William Cooke and Sir Charles Wheatstone designed a telegraph system utilizing multiple magnetic needles that could point to letters on a board, significantly enhancing message clarity. Their design was quickly adopted for railroad signaling, improving communication speed and safety. Meanwhile, in the United States, Samuel Morse, initially a painter, became fascinated with electromagnetism after a sea voyage conversation. By the mid-1830s, aided by Leonard Gale and Alfred Vail, Morse developed a simpler, more efficient single-wire telegraph system. His design, which utilized a single key to complete the circuit, streamlined the transmission process and reduced installation costs, making it practical for widespread use.
Which of the following statements is supported by information in the passage?
A. The invention of the battery was the strongest contributor to the development of the electric telegraph.
B. Cooke and Wheatstone’s five-needle device was quickly adopted around the world as the preferred system for railroad signaling.
C. Morse is singularly credited to have produced the first single circuit electric telegraph.
D. The discovery of electromagnetism advanced the scientific community to invent the first electric telegraph.
E. Most historians attribute the invention of the electric telegraph exclusively to the American team of Morse, Gale, and Vail.
A) Incorrect. The passage lists the battery and Oersted’s electromagnetism discovery as two key developments. It never ranks one above the other or calls the battery “strongest.” The superlative claim goes outside of the scope.
B) - Incorrect the passage says their system “was soon being used for railroad signaling in Britain,” but never mentions global adoption.
C) - Incorrect Paragraph 2 says Morse worked “in collaboration with Gale and Vail.” The word singularly contradicts that shared credit, so the statement misrepresents the passage.
D) - Correct Answer The first paragraph links Oersted’s 1820 demonstration to worldwide experimentation that led to telegraph development, exactly the causal relationship this choice paints but in different words.
E) - Incorrect the passage states that credit “generally falls to two sets of researchers” – one British and one American – so an “exclusively American” claim is unsupported.
Answer: D
In the early 19th century, significant advancements in the field of electricity paved the way for the development of the electric telegraph. The first major breakthrough came in 1800 when Italian physicist Alessandro Volta invented the voltaic pile, the first chemical battery that could produce a steady electric current. This innovation allowed for more systematic experiments with electricity. A second milestone occurred in 1820, when Danish physicist Hans Christian Oersted demonstrated that electric currents create magnetic fields, an essential principle of electromagnetism. These discoveries spurred inventors across Europe and America to explore their applications in communication technology.
In England, Sir William Cooke and Sir Charles Wheatstone designed a telegraph system utilizing multiple magnetic needles that could point to letters on a board, significantly enhancing message clarity. Their design was quickly adopted for railroad signaling, improving communication speed and safety. Meanwhile, in the United States, Samuel Morse, initially a painter, became fascinated with electromagnetism after a sea voyage conversation. By the mid-1830s, aided by Leonard Gale and Alfred Vail, Morse developed a simpler, more efficient single-wire telegraph system. His design, which utilized a single key to complete the circuit, streamlined the transmission process and reduced installation costs, making it practical for widespread use.
Which of the following statements is supported by information in the passage?
A. The invention of the battery was the strongest contributor to the development of the electric telegraph.
B. Cooke and Wheatstone’s five-needle device was quickly adopted around the world as the preferred system for railroad signaling.
C. Morse is singularly credited to have produced the first single circuit electric telegraph.
D. The discovery of electromagnetism advanced the scientific community to invent the first electric telegraph.
E. Most historians attribute the invention of the electric telegraph exclusively to the American team of Morse, Gale, and Vail.
A) Incorrect. The passage lists the battery and Oersted’s electromagnetism discovery as two key developments. It never ranks one above the other or calls the battery “strongest.” The superlative claim goes outside of the scope.
B) - Incorrect the passage says their system “was soon being used for railroad signaling in Britain,” but never mentions global adoption.
C) - Incorrect Paragraph 2 says Morse worked “in collaboration with Gale and Vail.” The word singularly contradicts that shared credit, so the statement misrepresents the passage.
D) - Correct Answer The first paragraph links Oersted’s 1820 demonstration to worldwide experimentation that led to telegraph development, exactly the causal relationship this choice paints but in different words.
E) - Incorrect the passage states that credit “generally falls to two sets of researchers” – one British and one American – so an “exclusively American” claim is unsupported.
Answer: D
28 May 2018, 09:50
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I think this is a high-quality question and I agree with explanation.
