Question

4.0 C and -1.0 uC charges are kept fixed at A and
B as shown. Find x if a charged particle at C
experiences no net coulomb force.
4.0 uc
-1.0 C
Å
B
2 cm
1 Icm
2 cm
3cm
4 cm​

Answer 1

Answer is 1 because we cut 3 and4

Answer 2

Concept:

The neutral point between unlike charges is the foundation of this query.

Given:

Two charges, 4.0μC and –1.0 μC charges are kept fixed at A and B positions.

Find:

We need to determine the value of x when charge C experiences no net Coulomb force.

Solution:

The neutral point will be nearer to the smaller charge.

Since the question diagram is not provided, let's assume that the distance between charges is d.

The neutral point is considered an N.

Therefore, it can be considered that,

E1 = E2

K(4)C/(d+x)² = k(1)C/x²

2/d+x = 1/x

2x = d+x

d = x

Thus, the value of x is d when a charged particle at C experiences no net Coulomb force.

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