बल को एक उनचासवाँ करना है और आवेश समान रखने हैं। दूरी कैसे बदलनी होगी?

Force must be made one forty ninth while charges remain same. How should distance change?

Explanation opens after your attempt
Correct Answer

A. दूरी सात गुनी / Distance seven times

Step 1

Concept

Making distance seven times makes distance square forty nine times.

Step 2

Why this answer is correct

Force is inversely proportional to square of distance.

Step 3

Exam Tip

Therefore force becomes one forty ninth. चरण 1: दूरी सात गुनी होने पर दूरी का वर्ग उनचास गुना होता है। चरण 2: बल दूरी के वर्ग के व्युत्क्रम अनुपात में है। चरण 3: इसलिए बल एक उनचासवाँ हो जाएगा।

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