Electromagnetic induction Current changing from 8 A to 12 A in one second induced 20 volts in a coil. The value of inductance is 5 H 10 H 15 H 20 H 5 H 10 H 15 H 20 H ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The law that the induced e.m.f. and current always oppose the cause producing them is due to Faraday Lenz Coulomb Newton Faraday Lenz Coulomb Newton ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A conductor 2 meters long moves at right angles to a magnetic field of flux density 1 tesla with a velocity of 12.5 m/s. The induced e.m.f. in the conductor will be 25 V 15 V 12 V 10 V 25 V 15 V 12 V 10 V ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction For a purely inductive circuit which of the following is true? Relative power is zero Actual power of the circuit is zero Apparent power is zero Any capacitance even if present in the circuit will not be charged Relative power is zero Actual power of the circuit is zero Apparent power is zero Any capacitance even if present in the circuit will not be charged ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In case of an inductance, current is proportional to Voltage across the inductance None of the listed here Both of the listed here Magnetic field Voltage across the inductance None of the listed here Both of the listed here Magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will Increases Remains same Decreases None of the listed here Increases Remains same Decreases None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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