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ساکن برقیات

دسویں جماعت · طبیعیات · 5 سوالات

نام: ____________________   تاریخ: ____________

  1. Like charges:

    • A Attract each other
    • B Cancel
    • C Repel each other
    • D Have no effect

  2. The SI unit of charge is the:

    • A Ampere
    • B Volt
    • C Farad
    • D Coulomb

  3. When a glass rod is rubbed with silk, the glass rod becomes:

    • A Positively charged
    • B Negatively charged
    • C Neutral
    • D Magnetised

  4. The capacitance C of a capacitor is given by:

    • A C = V / Q
    • B C = Q + V
    • C C = Q V
    • D C = Q / V

  5. A 5 microfarad capacitor is charged to 10 V. What charge does it store?

    • A 15 microcoulombs
    • B 50 microcoulombs
    • C 2 microcoulombs
    • D 0.5 microcoulombs

جوابی کلید

1. C, 2. D, 3. A, 4. D, 5. B

  1. Like charges repel and unlike charges attract.

  2. Charge is measured in coulombs.

  3. Glass loses electrons to silk and becomes positively charged.

  4. Capacitance is the charge stored per unit potential difference.

  5. Q = C V = 5 x 10 = 50 microcoulombs.