When a loop of current-carrying wire turns continuously in a magnetic field, a is created. a) galvanometer b) motor c) transformer d) voltmeter

B motor.

As described in the question a loop of current carrying wire that is coil turns continuously that is rotations in a magnetic field. In a motor also there are rotations of current carrying loop in a magnetic field. There is no continuous rotations in galvanometer, transformer and Voltmeter only in motor there are continuous rotations.

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min

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