Electric Charge and Its Properties
Physics ⇒ Electricity and Magnetism
Electric Charge and Its Properties starts at 7 and continues till grade 12.
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See sample questions for grade 9
A glass rod is rubbed with silk. The glass rod becomes positively charged. What happens to the silk?
A plastic rod is rubbed with wool. The rod acquires a negative charge. Explain why.
Define the term 'static electricity'.
Describe the process of charging by induction.
Describe what happens when a negatively charged rod is brought near small pieces of paper.
Explain why a charged balloon sticks to a wall after being rubbed on hair.
If a body has a charge of 2.4 × 10^-18 C, how many protons does it have in excess?
If a body has a charge of -4.8 × 10^-19 C, how many excess electrons does it have?
If a body has a charge of 8 × 10^-19 C, how many excess electrons does it have?
State the law of conservation of electric charge.
What is meant by quantization of charge?
What is the charge on 10^6 electrons?
What is the charge on 5 × 10^18 protons?
What is the meaning of the statement: 'Charge is conserved in all physical processes'?
What is the net charge on an atom?
What is the SI unit of electric charge?
What is the total charge on 1 mole of electrons? (Avogadro's number = 6.022 × 10^23)
Which law states that the force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them?
