SaraNextGen Study App [2023-24]
Last Updated On 16-03-2023 - By Jeesha Sara

In an electrical cable there is a single wire of radius  of copper. Its resistance is  The cable is replaced by 6 different insulated copper wires, the radius of each wire is  Now the total resistance of the cable will be

a)

b)

c)

d)


Question ID - 150262 :-

In an electrical cable there is a single wire of radius  of copper. Its resistance is  The cable is replaced by 6 different insulated copper wires, the radius of each wire is  Now the total resistance of the cable will be

a)

b)

c)

d)

1 Answer
5876 Votes
3537

Answer Key : (a) -

(a)

Initially : Resistance of given cable

    …(i)

Finally : Resistance of each insulated copper wire is

 Hence equivalent resistance of

cable     …(ii)

on solving equation (i) and (ii), we get



Next Question :

Two identical cells send the same current in 3  resistance, whether connected in series or in parallel. The internal resistance on the cell should be

a)

1

b)

3

c)

d)

3.5


View Topper Answer

We hope we have given the updated helpful answer / content for your query in an easily accessible format to help you in preparing adequately. We do offer free support materials, 10th maths guide, 10th science guide, 10th tamil guide, 10th social guide, 10th english guide, science 10th guide and also for all the classes books and guide to all the students who sign up for SaraNextGen. Apart from traditional textbook queries, we've got conjointly provided further high order level thinking issues, that are seemingly to be expected in boards and competitive exams. It includes conceptual queries, MCQs, Long and short answer type queries, etc. These Questions are designed to learn each student and academics by providing chapter-wise further issues focusing totally on testing conceptual information with applications. Here, we've got provided a number of the necessary ways in which within which the solutions of all the Questions will profit students of class 1 to 12. If you have any queries, drop a message to us and we will get back to you at the earliest.


SaraNextGen