Electricity — Science STD 10 — Question

What happens to the other bulbs in a parallel circuit if one bulb blows off?

Are the lights in your house wired in series?

Draw a circuit diagram showing two electric lamps connected in parallel together with a cell and a switch that works both lamps. Mark an on your diagram to show where an ammeter should be placed to measure the current.

An electric bulb is rated at 220V, 100W. What is its resistance?

Where, in a nuclear power station, is uranium, used up?

We know that light refracts (or bends) when it goes from one medium to another. Now, the atmosphere contains only air. Then how does light get refracted on passing through only air in the atmosphere?

What is the:
Near point of a normal human eye?

Why does sky look blue on a clear day?

When a wire is moved up and down in a magnetic field, a current is induced in the wire. What is this phenomenon known as?

Explain why, filament type electric bulbs are not power efficient.