*** TRUE OR FALSE: ANSWER ALL QUESTIONS*** 6. When a magnetic bar is either appr

Question

*** TRUE OR FALSE: ANSWER ALL QUESTIONS***

6. When a magnetic bar is either approaching or leaving a loop of wire, current will be induced. The directions of the induced current in these two cases must be opposite.

7. When the magnet is moving relative to the loop of wire, the loop can detect the change of magnetic field and an induced current related to the changing magnetic field is created.

9. When the switch of the primary wire is kept on for a while, the secondary coil will get an induced current, until someone turns off the primary wire.

10. Only when the switch of the primary wire is kept on, an induced current will occur in the secondary wire.

11. Only when the switch of the primary wire is turned on or off, and the B field created by the primary wire is changing, an induced current will occur in the secondary wire.

Explanation / Answer

6. true(acc to right hand rule current induce will be different direction)

7. true

9.false

10. false

11. true(current is induced only till magnetic flux change)

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