- Exam
- JEE Main
- Year
- 2023
- Date
- 1 February
- Shift
- Evening Shift
- Subject
- Physics
- Chapter
- Current Electricity
JEE Main 2023 · 1 February · Evening Shift · Physics · Current Electricity
Given below are two statements : One is labelled as Assertion A and...
Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : For measuring the potential difference across a resistance of , the voltmeter with resistance will be preferred over voltmeter with resistance .
Reason R : Voltmeter with higher resistance will draw smaller current than voltmeter with lower resistance.
In the light of the above statements, choose the most appropriate answer from the options given below
Options
- AA is not correct but R is correct
- BBoth A and R are correct and R is the correct explanation of A
- CBoth A and R are correct but R is not the correct explanation of A
- DA is correct but R is not correct
Correct answer
A. A is not correct but R is correct
Step-by-step solution
Voltmeter is connected in parallel, so it should have very high resistance as to measure the potential difference, all the current should pass through the resistor and no current should pass through voltmeter for precise readings.
The current will divide and travel through the voltmeter if the voltmeter has a low resistance and will then give faulty readings.
Thus, A is not correct but R is correct.