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 R Ω 8R Ω 2R Ω 4R Ω R Ω 8R Ω 2R Ω 4R Ω ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Current magnification will occur in which of the following case? None of these Parallel resonance Series resonance Both None of these Parallel resonance Series resonance Both ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Current source has internal impedance connected in parallel with it whereas voltage source has internal impedance connected in __________________ with it. both of above none of them series parallel both of above none of them series parallel ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three resistors of 4 ohm, 6 ohm and 8 ohm are in parallel. In which resistor, power dissipation will be maximum equal in all resistors. 8 Ohm. 4 Ohm. 6 Ohm. equal in all resistors. 8 Ohm. 4 Ohm. 6 Ohm. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A wire 2.5 m long is bent into a square. An current of 100 A flowing through the wire will produce a magnetizing force at the center of the square, equal to 196 AT / m. 222 AT / m. 72 AT / m. 144 AT / m. 196 AT / m. 222 AT / m. 72 AT / m. 144 AT / m. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 20 μF capacitor and 200 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow dimmest? 10 Hz. 1 Hz. 1000 Hz. 100 Hz. 10 Hz. 1 Hz. 1000 Hz. 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
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