Selina Solutions Concise Physics Class 10 Chapter 8 Current Electricity Get PDF Here
Given below are all the formulas used for class 10 electricity chapter. Charge q on a body is always denoted by. q = ne q = n e. where n = any integer positive or negative and e = 1.602×10−19C e = 1.602 × 10 − 19 C i. e., charge on an electron or proton. W ork done =charge ×potential W o r k d o n e = c h a r g e × p o t e n t i a l or.
Selina Solutions Concise Physics Class 10 Chapter 8 Current Electricity Get PDF Here
Numericals for Electricity Class 10. Numericals for Electricity in Class 10 are an integral part of the curriculum, aimed at developing a deeper understanding of electrical concepts. These numerical problems involve practical applications of Ohm's law, resistivity, electric power, and other electrical parameters.
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These numericals on electricity are important and are always asked in the Class 10 CBSE, RBSE, and other board examinations. Numerical Problems based on Ohm's law To solve the numericals on electricity based on Ohm's law , we will use the following formulas
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Frequency of appearance: ★ ★ ★ ★ ★. Q2. A current of 10 A flows through a conductor for two minutes. ( i ) Calculate the amount of charge passed through any area of cross section of the conductor. ( ii ) If the charge of an electron is 1.6 × 10 − 19 C , then calculate the total number of electrons flowing.
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23. In the given Figure R1 = 10 Ω, R2 = 40 Ω, R3 = 30 Ω, R4 = 20 Ω, R5 = 60 Ω, and a. 12 V battery is connected to the arrangement. Calculate. (a) The total resistance in the circuit. (b) The total current flowing in the circuit. f24. Judge the equivalent resistance when the following are connected in parallel -.
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This post presents a few important numerical problems in physics that you can solve using the concepts of resistivity. If you want a quick revision to memorize the resistivity formula then you can check this post on resistivity formula derivation.. Note: Remember that: (1) resistivity is a property of the material (2) the unit of resistivity is ohms times metres and not ohms per metre.
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Important Questions of Electricity Class 10 Science Chapter 12. Question 1. A current of 10 A flows through a conductor for two minutes. (i) Calculate the amount of charge passed through any area of cross section of the conductor. (ii) If the charge of an electron is 1.6 × 10 -19 C, then calculate the total number of electrons flowing.
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NCERT Solutions for Class 10 Science Electricity - CBSE Free PDF Download *According to the CBSE Syllabus 2023-24, this chapter has been renumbered as Chapter 11. NCERT Solutions for Class 10 Science Chapter 12 Electricity provides answers and explanations to all the exercise questions provided in the textbook. These NCERT Solutions has questions related to electric cells, electric bulbs.
Important Questions For Class 10 Science Chapter 12 Electricity
Activity 12.1. Set up a circuit as shown in Fig. 12.2, consisting of a nichrome wire XY of length, say 0.5 m, an ammeter, a voltmeter and four cells of 1.5 V each. (Nichrome is an alloy of nickel, chromium, manganese, and iron metals.) First use only one cell as the source in the circuit.
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Worksheets play an important role in developing an understanding of Chapter 12 Electricity in CBSE Class 10. Students can download and save or print all the worksheets, printable assignments, and practice sheets of the above chapter in Class 10 Science in Pdf format from studiestoday.
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Solved Electricity numerical for class 10 1. Question: Two bulbs have ratings 100 W, 220 V and 60 W, 220 V respectively. Which one has a greater resistance? Answer: P=VI= V2/R For the same V, R is inversely proportional to P. Therefore, the bulb 60 W, 220 V has a greater resistance. 2. Question: A torch bulb has a resistance of 1 Ω when cold.
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3. An electric heater of resistance 8 ohm takes a current of 15 A from the mains supply line. Calculate the rate at which heat is developed in the heater. 4. A resistance of 40 ohms and one of 60 ohms are arranged in series across 220 volt supply. Find the heat in joules produced by this combination in half a minute. 5.
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Answer. In an electrical circuit two resistors of 2 Ω and 4 Ω respectively are connected in parallel to a 6 V battery. The heat dissipated by the 4 Ω resistor in 5 s will be. (a) 45 J. (b) 20 J. (c) 60 J. (d) 35 J. Answer. A cell, a resistor, a key and ammeter are arranged as shown in the circuit diagrams below.
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Electric charge is conserved, additive and quantised. The S.I. unit of electric charge is 'C' coulomb. Any other charged body will have a charge Q Q = ne where n is the number of electrons and e is the charge on electron = 1.6 x 10-19 coulombs. Electric current Electric current is a flow of electrons in a conductor such as a metal wire.
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Get NCERT Solutions, Notes, Numericals (with solutions) of Chapter 12 Class 10 NCERT Science- Electricity. It is a Physics Chapter, from which numericals always come in Board Exams.. At Teachoo, in addition to solving all the NCERT Back Exercise Questions. we have also solved Questions which are given in boxes between the chapter, Examples from the chapter, as well as Notes.
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Given below are the Class 10 Science Solved Numerical Questions for electricity. Question 1. A wire of length 3 m and area of cross-section 1.7 × 10 -6 m 2 has a resistance 3 × 10 -2 ohm. a. What is the formula for resistivity of the wire and what is the unit of it. b. Calculate the resistivity of the wire. Solution.