Electric Circuits The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be 800 Ω. 4 Ω. 400 Ω. 40 Ω. 800 Ω. 4 Ω. 400 Ω. 40 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The number of electrons in the outer most orbits of carbon atom is 6. 3. 7. 4. 6. 3. 7. 4. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following has least resistivity? Aluminium. Mercury. Copper. Lead. Aluminium. Mercury. Copper. Lead. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In which braking back emf exceeds supply voltage? Dynamic. Plugging. Regenerative. None of these. Dynamic. Plugging. Regenerative. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If a resistor and a capacitor are connected to form series R - C circuit across a voltage source. If frequency of voltage source increases the current remain unaltered. the current decreases abruptly. the current increases. the current decreases. the current remain unaltered. the current decreases abruptly. the current increases. the current decreases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Energy efficiency during electroplating is usually in the range 50 to 80%. 80 to 85%. 90 to 99%. 85 to 90%. 50 to 80%. 80 to 85%. 90 to 99%. 85 to 90%. ANSWER DOWNLOAD EXAMIANS APP
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