SSC Worksheet for chapter-1 The Electric Spark class 10

Worksheet For class 10

This page is prepared by the Academic team of Physics Wallah which consists of SSC 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.

Before solving the Worksheet for class 10 one must read the textbook of your school board exam and try to read the notes given in Physics Wallah class 10 notes sections. 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.

Physics Wallah worksheets for class 10 SSC can help students practice with tests and quickly revise lessons learned in the classroom with essential resources such as video lessons, short notes, and sample papers.

Class 10 Board is one of the most important year for every student and need a good planning and right study material to score good marks in your final exam. If any students need to take the online test to check their concepts or undertstanding then they can visit Physics Quiz for Class 10.

Objective Type Questions

Q1. The metal used in the filament of electric bulbs is

1. Tungsten
2. Nickel
3. Copper
4. Platinum

Q2. The commercial unit of electric energy is

1. KW hour
2. W
3. KW
4. erg

Q3. How many joules does 1 KW hour correspond to?

1. 3.6 ´X10⁵ J
2. 3.6 ´X10⁶ J
3. 10⁶ J
4. 10⁵ J

Q4. Material used for fuse should have

1. High melting point, low resistance
2. Low melting point, high resistance
3. High melting point, low resistance
4. Low melting point, low resistance

Q5. Material most commonly used in heating devices such as toaster and electric iron is

1. Copper
2. Rubber
3. Nichrome
4. Silicon

Q6. In case of parallel combination of resistance effective resistance will be

1. Lesser than any of resistances in the combination
2. Greater than any of resistances in the combination
3. Can be less or greater than any of resistances
4. Depends on value of resistance

Q7. An electric charge of 15 C passes through cross section of a wire in one minute. Find current through the wire.

1. 0.25 A
2. 0.5 A
3. 1 A
4. 0.75 A

Q8. A wire carries a current of 0.1 A, calculate charge passing through cross section of wire in 2 minutes.

1. 10 C
2. 12 C
3. 14 C
4. 20 C

Q9. A current of 0.1 A passes through a copper wire for 40 seconds. If charge on an electron is 1.6 ´ 10^–19 C, Find the number of electrons flowing through the cross section of wire.

1. 2 ´X10¹⁹
2. 2.5 X10¹⁹
3. 3 ´X10¹⁹
4. 4 ´X10¹⁹

Q10. If 15 J of work is done when a charge of 3 C is moved from one point to the other, find the electric potential difference between the 2 points.

1. 1 V
2. 2 V
3. 5 V
4. 10 V

Subjective Type Questions

Q1. Define 1 ampere current.

Q2. Draw a neat labeled circuit diagram which includes a cell, resistor, plug key (closed), ammeter, voltmeter and connecting wires. Show direction of electron current and conventional direction of current.

Q3. Define electric potential difference.

Q4. Define 1 volt of potential difference.

Q5. State Ohm’s law.

Q6. Find the expression for resistance connected in parallel.

Q7. Shorter the wire, larger is the resistance for the given cross section of a wire. True or false

Q8. An electric iron of 750 W works for two hours per day. If the cost per unit is Rs 3 per k-Wh, what will be the cost of energy utilized by the electric iron for it to work for 30 days.

Q9. Most of the electrical appliances need earthling explain.

Q10. Describe the working of a galvane meter.

Solutions for Objective and Subjective

1. (a)

2. (a)

3. (b)

4. (b)

5. (c)

6. (a)

7. (a)

8. (b)

9. (b)

10. (c)

Ans 1. 1 ampere:

Definition (i).

One Ampere is defined as the current that flows with electric charge of one Coulomb per second

Definition (ii). It is the steady current that when flowing in straight parallel wires of infinite length and negligible cross section, separated by a distance of one meter in free space, produces a force between the wires of 2 × 10^-7Newton’s per meter of length.

Ans 3. Electric potential difference

It is the work that has to be done in transferring unit positive charge from one point to the other and its unit is volts.

Ans 4. 1 volt.

The Potential difference between two points in an electric field is said to one volt if one joule of work has to be done in bringing a positive charge of one coulomb from one point to another.1 volt = 1 joule/1 coulombor1 V = 1J/1C

Ans 5. Ohms law

The principle that the electric current passing through a conductor is directly proportional to the potential difference across it provided that the temperature remains constant. The constant of proportionality is the resistance of the conductor