Question

Which one of the following is based on the heating effect of current?​

Answer 1

Answer:

An electric fuse is a safety device that works on the principle of the heating effect of electric current.

Answer 2

(d) All of these are based on the heating effect of the current.

• The process of production of heat due to the current flowing through a resistor is called the heating effect of electric current.
• If i is the current flowing through the resistor r, then in time t the amount of heat H produced in joules is given by:

        H = i²Rt

• Geyser, hairdryer, and immersion rod all work on electricity and all produce a heating effect either by heating water or by blowing warm air.
• Hence, all are based on the heating effect of electric current.

(The complete question is: Which one of the following is based on the heating effect of current? (a) Geyser (b) Hairdryer (c) Immersion rod (d) All of these)