# 12th Physics Assignment Answers TN SCERT

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12th Physics Assignment Answers. 12th Standard TN SCERT Assignment Answers, 12th Physics Unit 1 TN SCERT Answer key 2021. 12th Standard All Subject TN SCERT Assignment Unit 1 Answers. TN SCERT Announced 1st to 12th All Subject Assignment Worksheets for Unit 1. Students Can Note that 12th Physics Unit 1 TNSCERT Assignment.  12th Tamil Assignment Answers, 12th Maths Assignment Answers download PDF. 12th Physics Assignment Answers Unit 1 TNSCER Tamil Medium and English Medium. 12th Standard Physics Unit 1 TN SCERT Assignment Answer key.

## 12th PhysicsAssignment Answers TN SCERT

·       Class:12

·       Subject: Physics

·       Unit - 1.

## PART - A

1. One Mark Questions

1. The unit of charge is Coulumb

2. The value of "Eo" is 8.854X10-12

3. Electric potential is quantity Scalar

4. The electric lines start from……….to………………..

5. Torque experienced by on electric dipole in the uniform electric field t =p x E (vector)

6. If the point 'p' lies on the equatorial line of the dipole, then 0= 90°, Hence "V" = 0

7. What is polarization?

8. The value of IMF is?

9. What is action of point?

10. The SI unit of capacitance is? Farad

## PART - B

1. State coulomb's law

2. Define electic dipole.

3. Define Equi- potential ace

4. What is electric flux?

5. Write Gauss law

Gauss law: Gauss’s law states that if a charge Q is enclosed by an arbitrary closed surface, then the total electric flux ΦE through the closed surface is

ΦE = ∮E⃗  .d A⃗  = Qendε0

A positive point charge Q is surrounded by an imaginary sphere of radius r as shown in figure. We can calculate the total electric flux through the closed surface of the sphere using the equation.

## PART - C

1. Verify coulomb's law

2. Write the properties of electric lines of force.

3. Derive Electric potential due to a point charge

4. Explain the energy stored in the capacitor.

5. Write the application of capacitors.

# IV. Write in detail.

1. Derive the Electric field due to an electric dipole at point of the axial line.

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