JEE PHYSICS UNIT 12
QUIZ NO 4
TOTAL QUESTIONS = 20


1. The SI unit of electric current is


2. Ohm's law is valid for


3. The resistance of a wire depends on


4. Kirchhoff's first law deals with the conservation of


5. If the potential difference across a resistor is doubled, the current will


6. Which material has the least resistivity?


7. The reciprocal of resistivity is


8. A voltmeter is used to measure


9. The unit of electric power is


10. The drift velocity of electrons in a conductor is


11. The power dissipated in a resistor is given by


12. In a parallel circuit, the total resistance is


13. The device used to measure electric current is


14. The internal resistance of an ideal ammeter is


15. The temperature coefficient of resistance is positive for


16. The equivalent resistance of two resistors R₁ and R₂ connected in series is


17. The equivalent resistance of two resistors R₁ and R₂ connected in parallel is


18. The drift velocity of electrons is of the order of


19. The mobility of charge carriers is defined as


20. The resistivity of a material depends on



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