Electric Circuits The switch S is the circuit shown in figure is ideal. If the switch is repeatedly closed for 1 ms and opened for 1 ms, the average value of i(t) is 0.25 mA. 1 mA. 0.35 mA. 0.5 mA. 0.25 mA. 1 mA. 0.35 mA. 0.5 mA. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is called a cycle in case of AC operation ? When ac completes the (+)ve half, is called a cycle. When an alternating quantity completes the (–)ve cycle, is called a cycle. Option A and C both. When ac goes through a complete (+)ve to (-)ve, is called a cycle. When ac completes the (+)ve half, is called a cycle. When an alternating quantity completes the (–)ve cycle, is called a cycle. Option A and C both. When ac goes through a complete (+)ve to (-)ve, is called a cycle. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Under resonance condition the power factor of a system is unity lagging leading any of the above unity lagging leading any of the above ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the frequency of domestic power in India? 50 Hz. 60 Hz. 70 Hz. 220 Hz. 50 Hz. 60 Hz. 70 Hz. 220 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits 2) Two sinusoidal emfs are given as e1 = Asin(wt+45) and e2 = Bsin(wt-30). The phase difference between the two quantities in degrees is 60. 15. 75. 105. 60. 15. 75. 105. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 10Ω resistor is stretched to increase its length double. Its resistance will now be 40 Ω. 20 Ω. 10 Ω. 5 Ω. 40 Ω. 20 Ω. 10 Ω. 5 Ω. ANSWER DOWNLOAD EXAMIANS APP
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