The length of potentiometer|Current Electricity|JEEMAIN 2020

JEE MAIN 2020

08-01-20 S1

Question

The length of a potentiometer wire is 1200 cm and it carries a current of 60 mA . For a cell of emf 5 V and internal resistance of $20 \Omega$, the null point on it is found to be at 1000 cm . The resistance of whole wire is :

Select the correct option:

$80 \Omega$

$100 \Omega$

$160 \Omega$

$120 \Omega$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Physics

Medium

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