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The resistance of wire is 20W. The wire is stretched to three times its length. Then the resistance will now be A : 6.67 W B : 60 W C : 120 W D : 180 W
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The resistance of wire is 20W. The wire is stretched to three times it...
R=¶l/A....(.1).... ¶=resistivity Initially R=20After stretching R'=¶3 l/A'...2 A' is the changed cross section area after stretching As volume remains same soA x l=A'x 3lA'=A/3.. ......... 3Substitute the eqn 3 in 2R'=¶ 9l/AAs R=¶l/A=20So R'=180 ohm
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The resistance of wire is 20W. The wire is stretched to three times it...
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The resistance of wire is 20W. The wire is stretched to three times its length. Then the resistance will now be A : 6.67 W B : 60 W C : 120 W D : 180 W
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The resistance of wire is 20W. The wire is stretched to three times its length. Then the resistance will now be A : 6.67 W B : 60 W C : 120 W D : 180 W for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The resistance of wire is 20W. The wire is stretched to three times its length. Then the resistance will now be A : 6.67 W B : 60 W C : 120 W D : 180 W covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The resistance of wire is 20W. The wire is stretched to three times its length. Then the resistance will now be A : 6.67 W B : 60 W C : 120 W D : 180 W.
The resistance of wire is 20W. The wire is stretched to three times its length. Then the resistance will now be A : 6.67 W B : 60 W C : 120 W D : 180 W for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The resistance of wire is 20W. The wire is stretched to three times its length. Then the resistance will now be A : 6.67 W B : 60 W C : 120 W D : 180 W covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The resistance of wire is 20W. The wire is stretched to three times its length. Then the resistance will now be A : 6.67 W B : 60 W C : 120 W D : 180 W.
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