Electric Circuits The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be 4R Ω R Ω 8R Ω 2R Ω 4R Ω R Ω 8R Ω 2R Ω ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The phase angle of current in respect of supply voltage will be 32.1o. 28.8o. 40.4o. 20.2o. 32.1o. 28.8o. 40.4o. 20.2o. 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 2 Ohm and 2.5 Ohm. 1.5 Ohm and 3 Ohm. 2.2 Ohm and 2.3 Ohm. 1.25 Ohm and 3.25 Ohm. 2 Ohm and 2.5 Ohm. 1.5 Ohm and 3 Ohm. 2.2 Ohm and 2.3 Ohm. 1.25 Ohm and 3.25 Ohm. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A branch of a network is said to be passive when it contains voltage source. battery. current source. voltmeter. voltage source. battery. current source. voltmeter. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Consider the following circuit : Switch is closed at t = 0 Find i(0 +) (V*L) / (R*C) 0. V/R. V / {R + (sL + 1 / Cs)}. (V*L) / (R*C) 0. V/R. V / {R + (sL + 1 / Cs)}. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A star connected load has three equal impedance each of (40 + j30) Ω If the line current is 5 A then value of line voltage is 250 / √3 V. 250 V. 200 V. 250 √3 V. 250 / √3 V. 250 V. 200 V. 250 √3 V. ANSWER DOWNLOAD EXAMIANS APP
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