Question 425Electricity & Electronics - QMED
70% to passIf coil 'R1-R2-R3' on the transmitter in figure "C" shown in the illustration is turned 30 degrees clockwise, how will the corresponding coils 'R1-R2-R3' on the receivers (indicators) respond? Illustration EL-0092

The correct answer is A) torque will cause them to align to the same position. When the coil 'R1-R2-R3' on the transmitter is turned 30 degrees clockwise, it will create a magnetic field that will induce a corresponding change in the coils 'R1-R2-R3' on the receivers (indicators). Due to the principle of electromagnetic induction, the receiving coils will experience a torque that will cause them to align to the same 30-degree clockwise position as the transmitter coil. The other options are incorrect because: B) the voltage change would depend on the turns ratio, not the coil position; C) the coils would not ring, they would simply align; and D) the voltage change would depend on the turns ratio, not the coil position.
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