Advertisements
Advertisements
Question
Observe figure.
 |
 |
| A | B |
Which of these two circuits A or B shows the correct observation?
Solution
The electrons flow from the negative terminal towards the right terminal and then these electrons react with the potato and the end of the positive terminal which then turns the potato greenish blue. Hence, circuit A shows the correct observation.
APPEARS IN
RELATED QUESTIONS
Select conductors of electricity from the following: Copper wire, silk thread, pure water, acidulated water, human body, glass, mercury.
A current of 1.2 A flows through a conductor for 3.0 s. What amount of charge passes through the conductor?
Give one activity to prove that air is an insulator.
Pure water is a good conductor of electricity.
Assertion (A): It is very easy for our body to receive electric shock.
Reason (R): Human body is a good conductor of electricity.
Explain why the bulb would not glow in the arrangement shown in Figure.
The handles of the tools like screwdrivers and pliers used by electricians for repair work usually have plastic or rubber covers on them. Can you explain why?
Which of the following is an electrical conductor?
Wires made of ______ an electrical conductor, have very low resistance.
