
In which of the circuits do the bulbs glow brightest? (Assume that all bulbs and cells are identical)


Important Questions on The Essence of Electricity
Name the electrical components of the circuit which are labelled as A, B, C, D, E and F.

Have you ever seen an electric cell? If so, how many terminals does it have and, how can one differentiate the terminals of a battery?

Mohan is a student in class six. One day, his science teacher taught him electricity. After that, he had many doubts about the electrical appliances and measuring devices that are used in his home. He observed that a wire from an electric pole is connected to a joule meter A, fixed to the wall in the veranda, and from there to a main switch, and then to a main fuse. To this main fuse, a refrigerator, a fan, and a bulb are connected in parallel. Find out the appliance that consumes the least electric power among them.

Select the option that mentions the correct effect of the electric current with the working of the following electrical appliance.
Electric bell, Iron(box), Hair dryer, and Bulb.

Mann Singh and Junnu Singh are brothers. One day, Junnu and Mann Singh, as usual, used unauthorized electricity by connecting the wire directly to their nearby electric poles from their respective houses. But unfortunately, Junnu's house got short-circuited. Mann Singh realized what could have happened and immediately intimated an electrician to set up a kWh meter and start using the electricity in the right way. What do you understand from this?

Name the components labeled as P, Q, R, S, T, and U.

Write a note about an electrical device used to refigured homes from overload.

Name the material that is used in the dry cell to separate the cathode from the anode.
