NEET Physics Ohm's Law Verification MCQ Question with Solution

If two forces $P = 3 \text{ N}$ and $Q = 4 \text{ N}$ act at a point and the angle between them is $90^\circ$ , what is the magnitude of the resultant force?

A

5 N

B

7 N

C

1 N

D

12 N

Correct Answer

Option A

Detailed Explanation

Using the parallelogram law of vector addition, with $\theta = 90^\circ$ , the resultant $R = \sqrt{P^2 + Q^2} = \sqrt{3^2 + 4^2} = 5 \text{ N}$ .

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NEET Physics Ohm's Law Verification MCQ Question

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