Electromagnetic Field Theory A Yagi antenna has a driven antenna Only With a reflector With a reflector and one or more directors With one or more directors Only With a reflector With a reflector and one or more directors With one or more directors ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Parabolic and lens antenna used at Medium frequency High frequency Microwave frequency Low frequency Medium frequency High frequency Microwave frequency Low frequency ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When a wave is incident from the more dense into a less dense medium at an angle equal to or exceeding the critical angle, the wave suffers total internal __________ . Refraction None of these Reflection Transmission Refraction None of these Reflection Transmission ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Cork Screw rule is used to find direction of emf. direction of electric field. direction of current. direction of magnetic field. direction of emf. direction of electric field. direction of current. direction of magnetic field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A loop is rotating about x-axis in a magnetic field, B = BO cos(ω + φ) ay. The voltage in the loop is Due to rotating only. Due to both rotating and transformer action. Due to transformer only. Zero. Due to rotating only. Due to both rotating and transformer action. Due to transformer only. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A coil of 300 turns is wound on a non-magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The current of 3 A will be 113.04 mH. 37.68 mH. 37.68 µH. 113.04 µH. 113.04 mH. 37.68 mH. 37.68 µH. 113.04 µH. ANSWER DOWNLOAD EXAMIANS APP
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