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Answers
RMS means root mean square value for example if we say in our house the value of current is 10amp. it's means the RMS value of current and I0 is the max. current but I denote how the current is flowing in our household circuit and in your question it is changing with time periodically
In statistics and its applications, the root mean square (abbreviated RMS or rms) is defined as the square root of the mean square (the arithmetic mean of the squares of a set of numbers). The RMS is also known as the quadratic mean and is a particular case of the generalized mean with exponent 2......
Then the RMS voltage (VRMS) of a sinusoidal waveform is determined by multiplying the peak voltage value by 0.7071, which is the same as one divided by the square root of two ( 1/√2 ).....