Electric Circuits Which of the followings is the expression for energy stored in a capacitor? C / v. (1 / 2) Cv2. Cv. C dv / dt. C / v. (1 / 2) Cv2. Cv. C dv / dt. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Resistance of which material does not change with change in temperature? Platinum. Metal alloys constantan and manganin. Brass. Tungsten. Platinum. Metal alloys constantan and manganin. Brass. Tungsten. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The inductive reactance of an electric circuit is 200 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance? 200 Ohms. 100 Ohms. 400 Ohms. 50 Ohms. 200 Ohms. 100 Ohms. 400 Ohms. 50 Ohms. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A parallel plate capacitor has a capacitance of C farad. It area of the plates is doubled and the distance between them is half, the capacitance of the capacitor is C Farad. 4C Farad. 2C Farad. 16C Farad. C Farad. 4C Farad. 2C Farad. 16C Farad. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Say A point has an absolute potential of 40 V and point B has an absolute potential of - 10 V, then what will be the value of VBA ? 50 V. - 50 V. none of above. 30 V. 50 V. - 50 V. none of above. 30 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If the practical units of voltage and current wave each made 20 times as large as they are at present, what would be the consequent alternation in the size of the unit of capacitance? 200 times. Nil. 20 times. 60 times. 200 times. Nil. 20 times. 60 times. ANSWER DOWNLOAD EXAMIANS APP
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