Two ribbons are gien with the following particulars:

For a fixed voltage supply. Which of the two ribbons corresponds to a greater rate of heat production?

Write two integers whose product is greater than both the integers.

Isolated chloroplasts release oxygen when illuminated. Supply of which of the following will increase the rate of oxygen production ?

Isolated chloroplasts release oxygen when illuminated. Supply of which of the following will increase the rate of oxygen production ?

Isolated chloroplasts release oxygen when illuminated. Supply of which of the following will increase the rate of oxygen production ?

Isolated chloroplasts release oxygen when illuminated. Supply of which of the following will increase the rate of oxygen production ?

Which are the two types of supplies of electricity?

Two wires of same mass , having ratio of lengths 1 : 2, density 1 : 3 , and resistivity 2 : 1 , are connected one by one to the same voltage supply. The rate of heat dissipation in the wire is found to be 10 W . Find the rate of heat dissipation in the second wire.