the principle of which of these devices is electromagnetism A)galvanometer
b) motor
C) Transformer
D )all of these
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4
Answer:
Other uses for electromagnetic induction include electric motors used in anything from washing machines to trains, electric hobs and cookers, transformers, welding and guitar pickups. ... Electromagnets in the sensor induce eddy currents in a moving actuator which in turn generate their own magnetic field.
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Answer:
all of these
Explanation:
because all used electromagnets
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