a. An electrochemical cell once it stops working means that it is out of charge and it should be recharged to use it again.
b. The source of charge in a circuit is an electrochemical cell. Cell is the origin of charge in the circuit.
c. The amount of charge after flowing out of a light bulb is less than the amount that enters the light bulb. Charge is being used as it flows through a circuit.
d. Light bulb turns on as soon as you turn the switch because charge is flowing at very high speeds.
e. The electricity department supplies trillions of electrons to our homes everyday.
Are given statements true or not and if not what is the correct answer?
Answers
a. An electro-chemical cell once it stops working means that it is out of charge and it should be recharged to use it again. ----FALSE
(Reason:An electro-chemical cell cannot be recharged)
b. The source of charge in a circuit is an electro-chemical cell. Cell is the origin of charge in the circuit. -------FALSE
(Reason- The chemical reactions taking place in the cell is the origin of charge in the circuit)
c. The amount of charge after flowing out of a light bulb is less than the amount that enters the light bulb. Charge is being used as it flows through a circuit. -------FALSE
(Reason- When we talk about charges, we essentially talk about electrons, which cannot be used up)
d. Light bulb turns on as soon as you turn the switch because charge is flowing at very high speeds. -----FALSE
(Reason-, many charges moving through the light bulb at the same time, this causes a significant change of electrical energy to light energy which cause the light bulb filament to glow immediately.)
e. The electricity department supplies trillions of electrons to our homes everyday.-------FALSE
(Reason- Electricity is not transferred in the form of electrons.)