ac circuit?

Question

An ac circuit is rated 240 v.What is the maximum voltage?For an appliance in an ac circuit of maximum current of 2 amps,what is the effective current?

Answer 1

Max. 240v

Answer 2

The wording on this question is a little confusing, but I think it is essentially asking about the difference between RMS and peak. The difference is a factor of Sqrt(2), which is about 1.4142.

Assuming that this is the question here are my answers:

If a circuit is rated for 240V RMS the peak is 240*Sqrt(2), which is about 339.4 V

If a circuit has a peak current of 2 amps then the RMS current is 2/sqrt(2), which is sqrt(2) or about 1.4142 amps.

Speakers often list both numbers. The reason is that if the RMS power exceeds the limit on the speaker you will melt the wire insulation and ruin your speaker, if you exceed the peak power listed, you will exceed the travel limit on the speaker cone and possibly damage it.

Answer 3

QUestion seems to be not correct. U gave Voltage and Amperage ans asking again. If the appliance is rated 2 amps, it draws 2 amps under maaxm load and less at low loads, depends on load factor. U acn calculate power consumed using formula P=VI.

Answer 4

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Answer 5

If 240 is the RMS voltage (root-mean-square), then the peak voltage is 240/0.707 and the peak-to-peak voltage would be twice that. If the peak current is 2 amps, the effective current is
2 x 0.637 amps.