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
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