Appeared in: 2025 (2 sets)
(ii) An ideal transformer is designed to convert $50\text{ V}$ into $250\text{ V}$. It draws $200\text{ W}$ power from an ac source whose instantaneous voltage is given by $v_i = 20\sin$100\pi$t\text{ V}$. Find :
(I) rms value of input current.
(II) expression for instantaneous output voltage.
(III) expression for instantaneous output current.