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Question (21)

QN0038791

Two particle of equal mass and charge are placed at a distance of . They do not experience any force. The value of is

(A)
1
(B)
(C)
(D)

Correct Answer: D

Explanation:

They will not experience any force if

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Question (22)

QN0038792

Three identical charged balls each of charge are suspended from a common point by silk threads of each (as shown in figure). They form an equilateral triangle of side .
The ratio of net force on a charged ball to the force between any two charged balls will be :

(A)
(B)
(C)
(D)

Correct Answer: D

Explanation:

Let force between two charge be . Then

so, required ratio

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Question (23)

QN0038793

Sixty four conducting drops each of radius 0.02m and each carrying a charge of are combined to form a bigger drop. Ratio of surface density of bigger drop to the smaller drop will be:

(A)
(B)
(C)
(D)

Correct Answer: B

Explanation:

(b) From law of conservation of charge

and,

So,

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Question (21)

Two particle of equal mass and charge are placed at a distance of . They do not experience any force. The value of is

Explanation:

Link:

Question (22)

Three identical charged balls each of charge are suspended from a common point by silk threads of each (as shown in figure). They form an equilateral triangle of side .
The ratio of net force on a charged ball to the force between any two charged balls will be :

Explanation:

Link:

Question (23)

Sixty four conducting drops each of radius 0.02m and each carrying a charge of are combined to form a bigger drop. Ratio of surface density of bigger drop to the smaller drop will be:

Explanation:

Link:

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Question (21)

Two particle of equal mass and charge are placed at a distance of . They do not experience any force. The value of is

Explanation:

Link:

Question (22)

Three identical charged balls each of charge are suspended from a common point by silk threads of each (as shown in figure). They form an equilateral triangle of side . The ratio of net force on a charged ball to the force between any two charged balls will be :

Explanation:

Link:

Question (23)

Sixty four conducting drops each of radius 0.02m and each carrying a charge of are combined to form a bigger drop. Ratio of surface density of bigger drop to the smaller drop will be:

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY

Three identical charged balls each of charge are suspended from a common point by silk threads of each (as shown in figure). They form an equilateral triangle of side .
The ratio of net force on a charged ball to the force between any two charged balls will be :