In order to increase the resistance of a given wire of uniform cros...

Channel:
PW Solutions
Subscribers:
451,000
Published on ● Video Link: https://www.youtube.com/watch?v=72IIOrWJ7sM


Duration: 2:48
112 views
0

In order to increase the resistance of a given wire of uniform cross-section to four times its value, a fraction of its length is stretched uniformly till the full length of the wire becomes \( \frac{3}{2} \)
\( \mathrm{P} \) times the original length. What is the value of this fraction?
(a) \( \frac{1}{4} \)
(b) \( \frac{1}{8} \)
(c) \( \frac{1}{16} \)
(d) \( \frac{1}{6} \)
W.
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-02-16Three conducting shells \( A, B \) and \( C \) of radii \( a, b \) ...
2023-02-16Amongst the ions the aromatic species are: (A) (B) (C) (D) \( \math...
2023-02-16Five identical charges are kept at five vertices of a regular hexag...
2023-02-16One kilowatt electric heater is to be used with \( 220 \mathrm{~V} ...
2023-02-16The major product formed in the reaction is : O\( +\mathrm{HNO}_{3}...
2023-02-16Two moles of a certain ideal gas at a temperature \( T_{0}=300 \mat...
2023-02-16Figure shows a parallel plate capacitor with plate area \( A \) and...
2023-02-16The following three isomeric tribromobenzenes are subjected to mono...
2023-02-16Figure shows a parallel plate capacitor with plate area A and plate...
2023-02-16Which of the following groups are m-directing : (A) \( -\mathrm{CHO...
2023-02-16In order to increase the resistance of a given wire of uniform cros...
2023-02-16An electric dipole is placed at the centre of a sphere. Mark the co...
2023-02-16The temperature of the sun's interior is estimated to be about \( 1...
2023-02-16Find the minimum attainable pressure of an ideal gas in the process...
2023-02-16\( \underset{\mathrm{FeBr}_{2}}{\stackrel{\mathrm{Br}_{2}}{\longrig...
2023-02-16Arrange the following in correct activating order towards EAS - \( ...
2023-02-16Which of the following substituted benzene derivatives would produc...
2023-02-16A gas \( (\gamma=1.5) \) is enclosed in a thermally insulated conta...
2023-02-16Benzene reacts with \( \mathrm{CH}_{3} \mathrm{COCl} \) in the pres...
2023-02-16Find the minimum attainable pressure of an ideal gas in the process...
2023-02-16Find the minimum attainable pressure of an ideal gas in the process...


Tags:
pw