Question

4. Which equipment is not based on heating effect of electric current?
(a) Electric bulb
(b) Electric oven
(c) Electric iron
(d) Electric kettle​

Answer 1

Answer:

Electric oven is the answer

Answer 2

Electric bulb equipment is not based on the heating effect of electric current. (Option a)

• Moreover, some examples of electrical devices that make use of the heating effect of current are electric iron, electric kettle, electric heater, etc.
• According to the theorem, when an electric current is passed through any conductor, it generates heat due to the blockage caused by the conductor.
• However, the work done in the flow of the current is overcoming, and the hindrance to the current that generates heat in that conductor.
• Thus, the heating effect of an electric current, I which is the current through a conductor of resistance, R for a time, t and the formula is given by H = I2Rt.
• The above equation is called Joule's equation of the heat effect of electrical current.

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