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resistance

Resistance are connected in series

Last Updated on March 20, 2019 By Mrs Shilpi Nagpal Leave a Comment

Resistors 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

Resistance

Last Updated on May 4, 2020 By Mrs Shilpi Nagpal Leave a Comment

Resistivity

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

Last Updated on May 4, 2020 By Mrs Shilpi Nagpal 5 Comments

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

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