Q5 of 12 Page 37

The marking on an electrical appliance is 800 W, 200 V.

What happens if 500 V is applied to it?

Since this is beyond the rating of the device, chances are it will burn out, but first we need to check the power generated as well.

Power =


which is beyond the rating. So, the appliance will be destroyed.


More from this chapter

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5

The marking on an electrical appliance is 800 W, 200 V.

If it works on 100 V, what is the power consumed?

 5

The marking on an electrical appliance is 800 W, 200 V.

What is the power when it works on 50 V?

 6

A potential difference of 200 V is applied at a 200 Ω resistor for 5 minutes.

Calculate the amount of heat generated.

 6

A potential difference of 200 V is applied at a 200 Ω resistor for 5 minutes.

If 200 Ω is replaced by 100Ω, how much heat will be generated in 5 minutes?