EASY
9th Tamil Nadu Board
IMPORTANT
Earn 100

Rubbing a comb on hair makes the comb get -0.4 C. Find how many electrons are transferred in this process.

Important Questions on Electric Charge and Electric Current

EASY
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 4 - Electric Charge and Electric Current>textbook exercises>Q vii
Calculate the amount of charge (in coulombs) that would flow in 2 hours through an element of an electric bulb drawing a current of 2.5 A.
HARD
9th Tamil Nadu Board
IMPORTANT
Science Standard 9>Chapter 4 - Electric Charge and Electric Current>textbook exercises>Q vii

The value of current I flowing through a resistor for various potential differences V across the resistor are given below. What is the value of resistor?

I (ampere) 0.5 1.0 2.0 3.0 4.0
V (volt) 1.6 3.4 6.7 10.2 13.2