A current of \( 8 \mathrm{~A} \) flows in a metallic conductor of cross-section \( 1 \mathrm{~cm...

Channel:
PW Solutions
Subscribers:
443,000
Published on ● Video Link: https://www.youtube.com/watch?v=1UsZfXIaZqc


Duration: 4:01
1 views
0

A current of \( 8 \mathrm{~A} \) flows in a metallic conductor of cross-section \( 1 \mathrm{~cm}^{2} \) and length \( 10 \mathrm{~km} \). Free electron density of copper is \( 5 \times 10^{28} / \mathrm{m}^{3} \). The time taken by the electron to travel from one end of the conductor to the other is
(1) \( 10^{8} \mathrm{sec} \)
(2) \( 10^{9} \mathrm{sec} \)
(3) \( 10^{7} \mathrm{sec} \)
(4) \( 10^{5} \mathrm{sec} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-11-19Select the incorrect statment (1) Separation of DNA fragments occur according to their size duri...
2022-11-19A heater rated for \( 1000 \mathrm{~W} \) at \( 100 \mathrm{~V} \) is used in the circuit having...
2022-11-19Insertion of gene of interest in selectable marker leads to of selectable marker select the opti...
2022-11-19All the following is correct for vector except (1) Presence of restriction sites for various res...
2022-11-19A plasmid vector having 4 sites of \( E c o R \) I was subjected to restriction digestion by Eco...
2022-11-19A galvanometer can withstand safely a maximum current of \( 5 \mathrm{~mA} \). It is converted i...
2022-11-19The figure shows part of certain circuit. The magnitude of potential difference between points \...
2022-11-19\( 3 n \) identical cells each of emf ' \( E \) ' and internal resistance ' \( r \) ' are connec...
2022-11-19Two resistors are connected in series. At \( 0^{\circ} \mathrm{C} \), the values of first and se...
2022-11-19A wire is stretched by \( 10 \% \) of its original length by applying a force. The percentage ch...
2022-11-19A current of \( 8 \mathrm{~A} \) flows in a metallic conductor of cross-section \( 1 \mathrm{~cm...
2022-11-19समतलों, जिनके सदिश समीकरण \( \vec{r} \cdot(2 \hat{i}+2 \hat{j}-3 \hat{k})=5 \) और \( \vec{r} \cd...
2022-11-19In the given circuit shown in figure the potential difference between battery 2 will be (1) \( 5...
2022-11-19In the figure shown, the equivalent capacitance between \( A \) and \( B \) is (1) \( 3.75 \mu \...
2022-11-19The resistance of the following carbon resistor will be (1) \( (27 \times 10) \Omega \pm 10 \% \...
2022-11-19The figure below shows current in a part of electric circuit. The current \( i \) is:- (1) \( 1....
2022-11-19Which of the following monomers form biodegradable polymers? (a) 3-hydroxybutanoic acid + 3-hydr...
2022-11-19The polymer which undergoes environment degradation by microoganism is known as (a) chain-growth...
2022-11-19Directions : Each of these questions contain two statements, Assertion and Reason. Each of these...
2022-11-19Directions : Each of these questions contain two statements, Assertion and Reason. Each of these...
2022-11-19Directions : Each of these questions contain two statements, Assertion and Reason. Each of these...


Tags:
pw