Academics – Electro-Technology : 2014/DEC/04
Question
Q3. A coil possessing resistance and inductance is connected to a 120 V variable frequency supply. When the frequency is 50 Hz the current is 4A and when the frequency is raised to 100 Hz the current falls to 3 A. Determine EACH of the following:
(a) The resistance of the coil;
(b) The inductance of the coil;
(c) The power factor of the coil at 50 Hz;
(d) The power dissipated by the coil at 100 Hz.
Asked in Year/Month/Ques No.
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