A Thief's Story, Class 10 English, Footprints without Feet Detailed explanation of "A Thief's Story", including definitions of difficult words. In addition, the explanation is followed by a lesson summary. Also, NCERT Question and Answers are also provided to help students understand this Chapter and do well in their exams. Introduction The story highlights how … [Read more...] about A Thief’s Story, Class 10, English, Footprints without Feet – Summary, Explanation, Word Meanings
Electricity
Electrical Energy and Power
Question 1 Define the term electrical energy? Question 2 Define the term electric power? Question 3 What is the SI unit of power? Question 4 What is the commercial unit of KWh? Electrical Energy The work done by a source of electricity to maintain a current in an electrical circuit is called as electrical energy. q= It W= Vq W= VIt E= VIt … [Read more...] about Electrical Energy and Power
Resistance are connected in series
Question 1 What is meant by series combination of resistors? Question 2 You are provided with three resistors R1 , R2 and R3 . Write the formula for the equivalent resistance R when there resistors are connected in series? Question 3 A resistance of 6 Ω is connected in series with another resistor of 4 Ω.A potential difference of 20 volts is applied across the … [Read more...] about Resistance are connected in series
Circuit Diagram
Question 1 What is a circuit diagram? Question 2 Write the symbol for voltmeter and ammeter? Circuit Diagram A diagram showing the arrangement of various components in an electric circuit with the help of their symbols is called circuit diagram. … [Read more...] about Circuit Diagram
Heating Effect of electric current
Question 1 How heat is produced when electric current is passed through a conductor? Question 2 Define Joule's law? Question 3 How does electric heater,iron and water heater work on heating effect of current? Question 4 Why does filament of an electric bulb is made up of tungsten? Question 5 Why electric fuse in the electric circuit melts when large current flows … [Read more...] about Heating Effect of electric current
Resistors are Connected in Parallel
Question 1 What is meant by parallel combination of resistors? Question 2 You are provided with three resistors R1 , R2 and R3 . Write the formula for the equivalent resistance R when there resistors are connected in parallel? Question 3 Why parallel arrangement of resistors is used in domestic electric circuit? Question 4 A wire of resistance 5 Ω is bent in the … [Read more...] about Resistors are Connected in Parallel
Resistance
Question 1 A piece of wire is redrawn by pulling it until its length is doubles.Compare the new resistance with the original value? Question 2 How is the resistivity of a material related to the use of that material? Question 3 On what factors does the resistance of a conductor depends? Question 4 Why connecting wires in an electric circuit are made of Cu and … [Read more...] about Resistance
Ohm’s Law
Question 1 State ohm's law? Question 2 What is the resistance of an electric arc lamp,if the lamp uses 20 A when connected to a 220 Volt line? Question 3 Define resistance of a conductor.What is its SI unit? Question 4 Write the formula which relates electric current,time and electric current? Question 5 What kind of plot would you expect when current is plotted … [Read more...] about Ohm’s Law
Electric Potential and Potential Difference
Question 1 How much work is done in moving a charge of 2 Coulombs,from a point at 118 Volts to a point at 128 Volts? Question 2 Name the device used for measuring potential difference? Question 3 What are the conditions under which charges can move in a conductor? Question 4 How will you maintain a potential difference between the ends of a conductor? Question 5 … [Read more...] about Electric Potential and Potential Difference
Electricity
Question 1 Define the term electric current? Question 2 What is the SI unit of electric current? Question 3 Define the term ampere? Question 4 What is an open electric circuit? Question 5 What is a closed electric circuit? Electricity The flow of water in rivers and canals is called water current. The flow of charge in a conductor(metallic wire)is called … [Read more...] about Electricity