13. George ha s a bar magnet and a coil connectedto a battery. To perform an exp

Question

13. George ha s a bar magnet and a coil connectedto a battery. To perform an experiment, he needs to use differentvalues of current through the wire. How can he generate differentvalues of electric current through the wire without connecting anyother device in the circuit?

Explanation / Answer

13. George has a bar magnet and a coil connected to a battery.To perform an experiment, he needs to use different values ofcurrent through the wire. How can he generate different values ofelectric current through the wire without connecting any otherdevice in the circuit? SOLUTION ---->   {Different current values can be generated byplacing                                  bar magnetinside coil and moving magnet back and                                    forthinside coil. This will induce different current                                    valuesdepending on how fast bar magnet ismoved} .

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