Electrostatics-Electrostatic Potential Energy [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 1 - 5 of 19

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Question 1

Question MCQ▾

Two identical charges are placed at the two corners of an equilateral triangle. The potential energy of the system is U. The work done in bringing an identical charge from Infinity to the third vertex is

Choices

Choice (4)Response

a.

zero

b.

U

c.

3U

d.

2U

Edit

Question 2

Question MCQ▾

An electric dipole has the magnitude of its charge is q and its dipole moment is p. It is placed in a uniform electric field E. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively

Choices

Choice (4)Response

a.

q. E and p. E

b.

q. E and maximum

c.

2q. E and minimum

d.

Zero and minimum

Edit

Question 3

Question MCQ▾

Two equal negative point charges 2µC place 1 m apart from each other in air. so what is the potential energy of the system?

Choices

Choice (4)Response

a.

4 J

b.

0.036 J

c.

2 J

d.

2eV

Edit

Question 4

Question MCQ▾

Charges -q, Q and -q are placed at equal distance on a straight line. If the total potential energy of the system of three charges is zero, then find the ratio Q/q.

Three Charge System Placed at Equal Distance

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 5

Question MCQ▾

As shown in figure a dust particle with mass m = 5.010-9 kg and charge q0 = 2.0 nC starts from rest at point a and moves in a straight line to point b. What is its speed v at point b?

In Figure a Dust Particle with Mass M = 5.0 × 10-9 Kg and Charge q0 = 2.0 nC Starts from Rest at Point a and Moves in a Straight Line to Point B. At the End Points of Lines Two Charges + 3 nC and -3 nC Placed

Choices

Choice (4)Response

a.

34 ms-1

b.

14 ms-1

c.

46 ms-1

d.

26 ms-1

Edit