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 72 AT / m. 222 AT / m. 144 AT / m. 196 AT / m. 72 AT / m. 222 AT / m. 144 AT / m. 196 AT / m. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Electric field intensity ( E ) at any point in an electric field is equal to potential gradient. ( potential gradient )1/2. ( potential gradient )2. ( potential gradient )1/3. potential gradient. ( potential gradient )1/2. ( potential gradient )2. ( potential gradient )1/3. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If Vout = 1 V for 1 kHz input then what would be Vout for 10 kHz for same input ? None of these. 0.1 V . 0.01 V. 1 V. None of these. 0.1 V . 0.01 V. 1 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is the reactive power in AC operation? Real power × cosθ. Apparent power × cosθ. Apparent power × sinθ. Real power × sinθ. Real power × cosθ. Apparent power × cosθ. Apparent power × sinθ. Real power × sinθ. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If the practical units of voltage and current wave each made 20 times as large as they are at present, what would be the consequent alternation in the size of the unit of capacitance? 60 times. 20 times. Nil. 200 times. 60 times. 20 times. Nil. 200 times. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Image impedance can be written by using short circuit impedance(Zsc)and open circuit impedance(Zoc) as (Zsc . Zoc)½ Zsc/Zoc Zsc-Zoc Zsc+Zoc (Zsc . Zoc)½ Zsc/Zoc Zsc-Zoc Zsc+Zoc ANSWER DOWNLOAD EXAMIANS APP