Home
Class 11
PHYSICS
The specific resistance of a circular cr...

The specific resistance of a circular cross - section of a cylindrical wire of radius b and resistance R is given is `s=(pi b^(2)R)/(l)`, where l is it's length. If `b=(24+0.02)cm , R=(130+1)Omega , l = (4.0+0.01)cm`, the percentage error in s is nearly.

A

`7%`

B

`9%`

C

`1%`

D

`20%`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • UNITS AND MEASUREMENTS

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE - I) LEVEL - I|42 Videos

  • UNITS AND MEASUREMENTS

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE - I) LEVEL - II|10 Videos

  • UNITS AND MEASUREMENTS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - III)|11 Videos

  • UNITS AND MEASUREMENT

    AAKASH SERIES|Exercise Practice Exercise|45 Videos

  • VECTORS

    AAKASH SERIES|Exercise Additional Practice Exercise (Practice Sheet (Advanced)) (Integer Type Questions)|6 Videos

Similar Questions

Explore conceptually related problems

The length, breadth and thickness of a block are measured with the help of a meter scale. Given 1 = (5.12 + 0.01) cm b = (10.15 + 0.01) cm, t = (5.28 + 0.01) cm. The percentage error in volume is

The resistance R=V/I where V= (100 pm5)V and I= (10 pm 0.2)A . Find the percentage error in R.

If length and breadth of a plane are (40 + 0.2) and (30 +- 0.1) cm, the absolute error in measurement of area is

Current density in a cylindrical wire of radius R is given as J={(J_(0)((x)/(R )-1)" for "0lex lt (R )/(2)),(J_(0)(x)/(R )" for "(R )/(2)le x le R):} . If the current flowing in the wire is (k)/(12)piJ_(0)R^(2) , find the value of k.

The area of cross-section of steel wire is 0.1 cm^(2) and Young's modulus of steel is 2 times 10^(11)N" "m^(-1) . The force required to stretched by 0.1% of its length is

S is a relation over the set R^(+) of all real numbers and it is given by (a,b)in S iff ab gt 0 Then S is