Question

Which of the following devices work on the principle of heating effects of Current? i. Incandescent bulb ii. Room Heater iii. Iron iv. All of the above​

Answer 1

Answer: All of the above

ExPlanation;

As, in the question, we need to know which of the following, when current is passed through it leads to heating effect.[gets heated up simply]

Incandescent bulb, light up when a heated with high temperature & when continuous current flows through it,it gets heated up and bulb starts glowing.

Room heater also works on the same principle and iron too. [ Iron here means electronic iron that is used for clothes ]

Thanks! $\;$