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Which of the following will have the dimensions of time

1. LC
2. R/L
3. L/C
4. L/R

Correct answer: R/L

Solution

The dimensions of time can be derived by analyzing the given expressions. For R/L, resistance (R) has dimensions of ML²T⁻³A⁻², and inductance (L) has dimensions of ML²T⁻²A⁻². Dividing R by L gives dimensions of T, which corresponds to time.

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