ساکن برقیات

Like charges:

• 1 Attract each other
• 2 Cancel
• 3 Repel each other
• 4 Have no effect

The SI unit of charge is the:

• 1 Ampere
• 2 Volt
• 3 Farad
• 4 Coulomb

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

• 1 Positively charged
• 2 Negatively charged
• 3 Neutral
• 4 Magnetised

The capacitance C of a capacitor is given by:

• 1 C = V / Q
• 2 C = Q + V
• 3 C = Q V
• 4 C = Q / V

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

• 1 15 microcoulombs
• 2 50 microcoulombs
• 3 2 microcoulombs
• 4 0.5 microcoulombs

Charging by rubbing is called charging by:

• 1 Radiation
• 2 Conduction
• 3 Induction
• 4 Friction

A device that detects charge is an:

• 1 Ammeter
• 2 Electroscope
• 3 Barometer
• 4 Voltmeter

The unit of potential difference is the:

• 1 Ampere
• 2 Ohm
• 3 Coulomb
• 4 Volt

A good conductor of electricity is:

• 1 Glass
• 2 Rubber
• 3 Copper
• 4 Wood