1.       Thermocouple use which energy to generate electricity?

a.       Magnetic induction

b.      Heat

c.       Friction

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2.       Inductance circuit:

a.       Voltage leads current by 90°

b.      Voltage lags current by 90°

c.       Voltage leads current by 180°

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3.       Example of good insulator:

a.       Mercury

b.      Copper

c.       Glass

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4.       How to induce EMF:

a.       The conductor is moving

b.      Relative movement between the conductor and mag flux

c.       The magnetic field is moving

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5.       There are 2 charged bodies both with a force F. If the distance d between them is doubled, force becomes:

a.       F/4

b.      4F

c.       F/2

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