The relation between an ac voltage source and time in SI units is `V=120 sin(100 pi t)cos (100 pi t) V`. The value of peak voltage and frequency will be respectivelyA. 120 V and 100 HzB. `(120)/(sqrt(2)) V` and 100 HC. 60 and 200 HzD. 60 V and 100 Hz

The relation between an ac voltage source and time in SI units is `V=1

1.	The relation between an ac voltage source and time in SI units is `V=120 sin(100 pi t)cos (100 pi t) V`. The value of peak voltage and frequency will be respectivelyA. 120 V and 100 HzB. `(120)/(sqrt(2)) V` and 100 HC. 60 and 200 HzD. 60 V and 100 Hz
Answer» Correct Answer - D `V = 120 sin (100pi t) cos (100 pi t)V` `=60 sin (200pi t)V (because sin theta 2 sin theta cos theta)` Compare it withstandard equation, `V = V_(0) sin omega t` We get, `V_(0)=60 V` and `omega = 200pi` or `2pi upsilon=200pi` or `upsilon = 100 Hz`

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The relation between an ac voltage source and time in SI units is `V=120 sin(100 pi t)cos (100 pi t) V`. The value of peak voltage and frequency will be respectivelyA. 120 V and 100 HzB. `(120)/(sqrt(2)) V` and 100 HC. 60 and 200 HzD. 60 V and 100 Hz

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