Electrostatics [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 71 - 74 of 368

Choose Programs:

📹 Video Course 2024 (8 Lectures [3 hrs : 4 mins]): Offline Support

Rs. 100.00 -OR-

1 Month Validity (Multiple Devices)

Preview All LecturesDetails

⏳ 🎯 Online Tests (5 Tests [50 questions each]): NTA Pattern, Analytics & Explanations

Rs. 500.00 -OR-

3 Year Validity (Multiple Devices)

Sample TestsDetailsSee Demo

🎓 Study Material (575 Notes): 2024-2025 Syllabus

Rs. 650.00 -OR-

3 Year Validity (Multiple Devices)

Topic-wise Notes & SampleDetails

🎯 5119 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)

Rs. 750.00 -OR-

3 Year Validity (Multiple Devices)

CoverageDetailsSample Explanation

Help me Choose & Register (Watch Video) Already Subscribed?

Question 71

Question MCQ▾

A parallel plate capacitor is charged and the charging battery is then disconnected. If the plates of the capacitor are moved further apart by means of insulating handles, then

Choices

Choice (4)Response

a.

The capacitance increases

b.

The charge on the capacitor increases

c.

The voltage across the plates decreases

d.

The electrostatic energy stored in the capacitor increases

Edit

Question 72

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 perpendicular to the direction of the field, the force on it and its potential energy are respectively

Choices

Choice (4)Response

a.

q. E and

b.

q. E and

c.

are zero

d.

2q. E and minimum

Edit

Question 73

Question MCQ▾

If identical charges (-q) are placed at each corner of a cube of side b , then electric potential energy of charge (+ q) which is placed at center of the cube will be

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 74

Question MCQ▾

Figure given below shows two identical parallel plate capacitors connected to a battery with switch S closed. The switch is now opened and the free space between the plates of capacitors is filled with a dielectric of dielectric constant 3. What will be the ratio of total electrostatic energy stored in both capacitors before and after the introduction of the dielectric?

Circuit Diagram - Two Identical Parallel Plate Capacitors

Choices

Choice (4)Response

a.

3: 5

b.

3: 1

c.

5: 3

d.

5: 1

Edit