ICSE Worksheet for chapter-12 Current Electricity class 10

ICSE Worksheet for chapter-12 Current Electricity class 10

Worksheet For class 10

This page is prepared by the Academic team of Physics Wallah which consists of ICSE Board Worksheet for Class 10 Physics . Students of Class 10 Physics can get a free Worksheet for Class 10 Physics in PDF format prepared as per the newest syllabus and examination pattern in your schools.

Standard 10 students can practice questions and answers which are given here for Physics in Grade 10 that will help them to improve their knowledge of all important chapters and their topics. Students can also download free pdf of Class 10 Physics Notes prepared by teachers and solve important problems provided here with solutions on daily basis to get more scores in school exams and tests.

If any students need to take the online test to check their concepts or undertstanding then they can visit Physics Quiz for Class 10 .

Summary

• Electric Charge

(Definition; charge on a macro body ; types of electric charge; charging of a body ; properties of electric charge ; unit of charge )

• Static and Current Electrcity

(State electricity; current electricity)

• Electric Field and Electric Potential

(Electric field; electric potential; electric potential difference)

• Electric Current

(charge in motion ; unit of current ; direction of electric current ; how the current flows in a wire; how to get a continuous flow of electric current)

• Electric Circuits

(Open electric circuit; closed circuit)

• Electrical Resistance

(Ohm’s law; resistance of a conductor; unit of resistance; factors affecting the resistance of a conductor; resistivity; conductivity)

• Conductors, Insulators & Resistor

(Conductors; resistors)

Section 1 - Objective

Q1. How many electrons in 1s constitute a current of 1A?

1. 6.25 x 10 ¹⁸
2. 6.25 x 10 ¹²
3. 6.25 x 10 ¹¹
4. 6.25

Q 2. 1 Coulomb is equal to

1. 1amp x 1 sec
2. 1 amp/1sec
3. 1 joule x 1 amp
4. None of these

Q3. When a body is negatively charged by friction, it means

1. The body has acquired excess of electrons
2. The body has acquired excess of protons
3. The body has lost some electrons
4. The body has lost some neutrons

Q4. A suitable unit for expressing the strength of electric field is:

1. C
2. C/m
3. N/C
4. (D) C/N

Q5. If I’ is the current through a wire and ‘e’ is the charge of electron, then number of electrons in‘t’ seconds will be given by -

1. le/t
2. e/It
3. It/e
4. Ite

Q6. Conventionally, the direction of the current is taken as:

1. The direction of flow of negative
2. The direction of flow of atoms
3. The direction of flow of positive charges
4. The direction of flow of molecules

Q7. The space around a charge is called its:

1. Potential
2. Field
3. Field intensity
4. Potential Difference

Q8. What is not true for electric charge?

1. Electric charge is scalar quantity
2. Charge on a body may be positive or negative
3. S.I. unit of charge is coulomb
4. One Coulomb is charge of one electron

Q9. An electric bulb is connected in an electric circuit.10C charge flows through this bulb in 5 sec. Find the current flowing through this bulb

1. 2A
2. 5.5A
3. 7.2A
4. 11A

Q10. Unit of conductivity is

1. Ωm
2. Siemen/meter
3. Km/hr
4. NOT

Section 2 - Subjective

• Q1. Define the term resistance. State its SI unit.
• Q2. Define
  1. Conductors
  2. Insulators
  3. Electric Potential
• Q3. Explain any 3 factors affecting the resistance of a conductor
• Q4. State Ohms law. Is Ohms law valid for all conductors of electricity??
• Q5. Distinguish between ohmic & non ohmic resistors
• Q6. A wire of resistance 4Ω is redrawn by pulling, it such that its length gets doubled, what is its new resistance?
• Q7. Find the specific resistance of a wire of length 1.1m, 0.4m in diameter & having a total resistance of 4.2Ω

Solutions for Section 1 & 2

Objec​tive

Subjec​tive

6. 16Ω

7. 0.48 Ω m