# CBSE Class 10 Physics Question Bank

Read and download free pdf of CBSE Class 10 Physics Question Bank. Get printable school Assignments for Class 10 Physics. Standard 10 students should practise questions and answers given here for Physics in Grade 10 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 10 Physics prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations

## Assignment for Class 10 Physics

Class 10 Physics students should refer to the following printable assignment in Pdf in standard 10. This test paper with questions and answers for Grade 10 Physics will be very useful for exams and help you to score good marks

### Class 10 Physics Assignment

Q.1. Will current flow more easily through a thick wire or a thin wire of the same material when connected to the same source? Why?

Q.2. A wire of uniform area of cross-section is stretched to four times its original length. By what factor does its resistivity change?

Q.3. Nichrome and copper wires of same length and same radius are connected is series current "l‟ is passed through them. Why does the nichrome wire get heated first?

Q.4. If a wire of resistivity (ρ) is stretched to thrice its initial length. What will be its new resistivity?

Q.5. A wire of resistance 20 Ω is bent in the form of a closed circle. What is the effective resistance between the two points at the ends of any diameter of the circle?

Q.6. Name a substance whose resistance decreases with temperature.

Q.7. Why is less heat generated in long electric cables than in filaments of electric bulbs?

Q.8. State which has a higher resistance: a 50 W or a 25 W lamp bulb and how many times?

Q.9. Why is an ammeter likely to be burnt out if you connect it in parallel?

Section : A

Q.1. Two charged batteries A and B are at potential – 30 and + 20 V respectively and they are connected by a connecting wire. The current

(i) Will flow from A to B (ii) Will flow from B to A

(iii) Will not flow at all

Q.2. The work done in moving a positive charge across two points in an electric circuit is a measure of

(i) Current (ii) Potential difference

(iii) Resistance (iv) Power

Q.3. 1 coulomb = ____________ electrons

(i) 1.6 × 10 – 19 (ii) 9.1 × 10 – 31

(iii) 6.25 × 10 – 18 (iv) None of these

Q.4. The unit of specific resistance is

(i) Ohm metre (ii) Ohm

(iii) Volt (iv) Ampere

Q.5. Most metals are good conductors of electricity because they have

(i) Large number of molecules

(ii) Large number of free electrons

(iii) A shiny surface

(iv) A low temperature

Q.6. A wire is cut into half. Its resistivity

(i) Also becomes half

(ii) Becomes double

(iii) Remains same

(iv) Depends upon thickness of the wire

Q.7. 1 volt of potential difference is equal to

(i) 1 coulomb per joule (ii) 1 joule

(iii) 1 joule per coulomb (iv) 1 ampere

Q.8. In a resistance box the resistances are connected in

(i) Series (ii) Parallel

(iii) Neither of two (iv) Both (i) and (ii)

Q.9. For ohmic resistors, the graph between V and I is

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