Current Electricity — Physics STD 10 — Question

How does the heat produced by die passage of current in a metallic wire depend on the time of passage of current in the wire?

Is energy transferred during wave motion?

What is consumed while using different electrical appliances, for which electricity bills are paid?

A wave has wavelength 50Å of State its one use.

In the following case write yes, if the work is being done and no if no work is being done.
A man trying to push a wall.

A body is acted upon by two force of magnitude F, but in opposite directions. State the effect of the force if

the two forces act at two different points of the body at a separation r.

Write down the approximate temperature at which the water boils in a pressure cooker.

Some heat is provided to a body to raise its temperature by 25°C. What will be the corresponding rise in temperature of the body as shown on the Kelvin scale?

Which characteristics of sound will change if there is a change in its amplitude and its waveform.