Electric Circuits A 10 μF capacitor and 100 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow brightest? 1 Hz. 1000 Hz. 100 Hz. 10 Hz. 1 Hz. 1000 Hz. 100 Hz. 10 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If emf in a given circuit is given by e = 100 sinω0t, then maximum value of voltage and frequency will be 50√2 V, 100 Hz. 100 V, 100 Hz. 100 V, 50 Hz. 100√2 V, 100 Hz. 50√2 V, 100 Hz. 100 V, 100 Hz. 100 V, 50 Hz. 100√2 V, 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When the internal resistance of a cell is large compared to the external resistance in the circuit then high current can flow through the external resistance by grouping the cells in parallel. as in series. in either series or parallel. mixed. in parallel. as in series. in either series or parallel. mixed. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The current in a chemical cell is a movement of positive and negative ions. positive hole charges. negative ions only. positive ions only. positive and negative ions. positive hole charges. negative ions only. positive ions only. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is mean by flow of electrons? Electric current. Insulator. Voltage. Semiconductor. Electric current. Insulator. Voltage. Semiconductor. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of following materials has the least resistivity ? Lead. Mercury. Copper. Zinc. Lead. Mercury. Copper. Zinc. ANSWER DOWNLOAD EXAMIANS APP
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