Grade 10 Electricity

The unit of charge is

• Ampere

• Coulumb

• Farad

• Volt

A body can be negatively charged

• Giving electrons to it

• removing some electrons from it

• giving some protons to it

• removing some neutrons from it

_____________ is the amount of charge flowing through a particular area of cross section of a conductor in unit time.

• charge

• electric current

• potential

• energy

The SI unit of electric current is

• ohm

• volt

• Ampere

• Coulumb

Volt is the SI unit of

• potential difference

• current

• resistance

• charge

No current flows between two charged bodies when connected , if they have same

• capacity

• potential

• charge

• none

How many electrons are equals to 1 coulomb?

• 6.25x10^-16

• 6.25x10^-17

• 6.25x10^-18

• 6.25x10^-19

What is the work done in moving a charge of Q coulomb against a potential difference of V volt?

• Q/V

• QV

• Q+V

• Q-V

represents _______________ in an electric circuit.

• electric resistor

• electric cell

• variable resistance

• voltmeter

The resistances R1 and R2 are connected in parallel. The equivalent resistance of the combination is

• R1 + R2

• R1 – R2

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