Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

 Find the area of cross-section of the wire which when connected across the potential difference of 150 volts; produce a current of 5 milli ampere. It is given that the length of the wire is 20 centimeter and resistivity is 10 Ohm-centimeter.
Asked by nehchalrs15 | 02 Oct, 2020, 10:13: AM
answered-by-expert Expert Answer
V equals I R
150 equals 5 cross times 10 to the power of negative 3 end exponent R
R equals 30 cross times 10 cubed
A l s o space
R equals fraction numerator partial differential l over denominator A end fraction
30 cross times 10 cubed equals fraction numerator 10 cross times 10 to the power of negative 2 end exponent cross times 0.2 over denominator A end fraction
A equals 6.67 cross times 10 to the power of negative 7 end exponent
πr squared equals 6.67 cross times 10 to the power of negative 7 end exponent
From space here space radius space can space be space calculated
Answered by Utkarsh Lokhande | 03 Oct, 2020, 01:07: PM
CBSE 10 - Physics
Asked by sailakshmi.avinesh | 13 Feb, 2024, 07:03: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by sakshikatewa0 | 08 Feb, 2024, 12:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by saanviyadla | 24 Jan, 2024, 07:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by kamalaranjanmohantymohanty5 | 06 Jan, 2024, 10:05: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by saritavishwakarma1986 | 04 Jan, 2024, 12:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by nandanagnair | 17 Dec, 2023, 03:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by 0 0 | 19 Oct, 2023, 03:51: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×