Physics Form IV - Test

physics test 5 -[Form iV]

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1 ...... is study of emmision,behaviour and effects of electrons

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d. electronics - CORRECT!

A. astronomy

B. radioactivity

C. electrons

D. electronics

2...... are the materials that allow the electric current to pass though them

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a. conductors - CORRECT!

A. conductors

B. insulator

C. semi-conductor

D. vacuum

3....... is the gap between conduction band and valence band

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c. forbidden gap - CORRECT!

A. coductance

B. gap

C. forbiddden gap

D. vacuum space

4....... are the materials that do not conducts electric current

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b. insulators - CORRECT!

A. semi-conductors

B. insulators

C. conductors

D. hard materials

5...... has the small forbidden gap

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a. semi-conductor - CORRECT!

A. semi-conductor

B. conductor

C. insulator

D. none of the above

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