Electromagnetic Field Theory A fan blade of length 2R rotates in a time period T in a magnetic field B. The induced voltage in the blade is proportional to R2B / T. 2RBT. RBT. R2BT. R2B / T. 2RBT. RBT. R2BT. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The principle of dynamically induced emf is utilized in a transformer. thermocouple. generator. choke. transformer. thermocouple. generator. choke. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A satellite that simply reflect back the signals from one region of the earth to the other region is known as Passive satellite Active satellite Orbiting satellite Geostationary satellite Passive satellite Active satellite Orbiting satellite Geostationary satellite ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The Biot-savarts law is a general modification of Amperes law. Kirchhoffs law. Lenzs law. Faradays law. Amperes law. Kirchhoffs law. Lenzs law. Faradays law. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnitude of the induced emf in a conductor depends upon on the flux density of the magnetic field. amount of flux cut. amount of flux linkage. rate of change of flux linkage. flux density of the magnetic field. amount of flux cut. amount of flux linkage. rate of change of flux linkage. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will increase. decrease. initially increase and then decrease. remain the same. increase. decrease. initially increase and then decrease. remain the same. ANSWER DOWNLOAD EXAMIANS APP
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