यदि दो आवेशों के बीच बल स्थिर रखना है और एक आवेश चार गुना करना है तथा दूसरा आवेश समान है तो दूरी में क्या बदलाव चाहिए?

If force between two charges must be kept constant and one charge is made four times while the other remains same what change in distance is needed?

Explanation opens after your attempt
Correct Answer

A. दूरी दोगुनी / Distance double

Step 1

Concept

Making one charge four times tends to increase force four times.

Step 2

Why this answer is correct

To keep force constant distance effect must reduce force four times.

Step 3

Exam Tip

Doubling distance reduces force four times so distance must double. चरण 1: एक आवेश चार गुना होने से बल चार गुना बढ़ेगा। चरण 2: बल स्थिर रखने के लिए दूरी प्रभाव चार गुना घटाव दे। चरण 3: दूरी दोगुनी करने से बल चार गुना घटता है इसलिए दूरी दोगुनी करनी होगी।

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