Pribadi Depok Electricity grade 8

What is voltage?

• Voltage is the current per unit of time

• Voltage is the energy per unit of charge

• Voltage is power of resistance

• Voltage is the total charge in the object

What is the unit for voltage?

• Ampere

• Volt

• Ohm

• Joule

What is the instrument that is used to measure the voltage of a circuit?

• Voltmeter

• Ammeter

• Rheostat

• Thermometer

What is electric current?

• Electric current the number of charge flows per unit of time

• Electric current is the energy per unit of charge

• Electric current is how fast electric charge moves

• Electric current is the flow of proton per unit of time

What is the unit for electric current?

• Ampere

• Volt

• Ohm

• Watt

What is the name of instrument used to measure electric current?

• Ammeter

• Voltmeter

• Ohm meter

• Thermometer

120 Coulomb charge is flowing through wire in two minute. Calculate the electric current!

• 1 A

• 2 A

• 60 A

• 120 A

What is the relation between voltage and electric current?

• V = IR

• V = I/R

• V=R/I

• V=R+I

What is the relation between charge and electric current

• Q= I.t

• Q= I/t

• Q= t/I

• Q= I+t

12 Volt battery is used to turn on a light bulb. If the internal resistant of light bulb is 4Ω, Calculate the electric current!

• 2 A

• 3 A

• 6 A

• 48 A