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 40 Ω. 400 Ω. 800 Ω. 4 Ω. 40 Ω. 400 Ω. 800 Ω. 4 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In delta connected circuit when one resistor is open, then power will be remain unchanged. reduced by the factor of 3. increased by factor of 3. 0. remain unchanged. reduced by the factor of 3. increased by factor of 3. 0. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor has a capacitance of 6 μF. Calculate the stored energy in it if a DC voltage of 100 V, is applied across it? 3 × 102 joules. 6 × 102 joules. 4 × 102 joules. 2.5 × 102 joules. 3 × 102 joules. 6 × 102 joules. 4 × 102 joules. 2.5 × 102 joules. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two resistors R1 and R2 give combined resistance of 4.5 Ohm when connected in series and 1 Ohm when in parallel, the resistances are 1.25 Ohm and 3.25 Ohm. 2 Ohm and 2.5 Ohm. 2.2 Ohm and 2.3 Ohm. 1.5 Ohm and 3 Ohm. 1.25 Ohm and 3.25 Ohm. 2 Ohm and 2.5 Ohm. 2.2 Ohm and 2.3 Ohm. 1.5 Ohm and 3 Ohm. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The arrangement of 12 cells each of internal resistance 1.5 Ohm to give maximum current in external load resistance of 2 Ohm will be in 3 parallel rows each row having 4 cells in series. all 12 in series. in 4 parallel rows each row having 3 cells in series. all 12 in parallel. in 3 parallel rows each row having 4 cells in series. all 12 in series. in 4 parallel rows each row having 3 cells in series. all 12 in parallel. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor passes a current of 12.6 mA when supplied with 20 V ac with a frequency of 1000 Hz. The capacitance will be 1 μF. 0.1 μF. 0.001 μF. 0.01 μF. 1 μF. 0.1 μF. 0.001 μF. 0.01 μF. ANSWER DOWNLOAD EXAMIANS APP
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