Current Voltage Resistance Power

The flow of electrons in a circuit is known as

• Current

• Voltage

• Resistance

The measure of how hard it is to push charges through a wire

• Current

• Voltage

• Resistance

Conventional current theory was the first to be developed. It reasoned that electrical current flows from:

• negative to positive

• positive to negative

• positive to neutral

SI unit of current is

• ampere

• metre

• ohm

• volt

If 4000C of charge flows through a circuit in 60seconds, what is the current in the wire?

• 50 A
• 75 A
• 100 A
• 66.67 A

Drag the correct amperage to each spot on the wire.

a

b

c

4 A

1 A

2 A

3 A

What is the emf of a battery that increases 0.00088C of charge by 0.5J as it moves from negative to positive terminal in the battery?

• 0.002 V
• 1.5 V
• 0.1 V
• 568.18 V

The unit for resistance is

• watt

• ohm

• volt

• ampere

What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?

• 25 V
• 10 V
• 2.5 V
• 0.4 V

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

• 1 Ohm
• 3 Ohms
• 4 Ohms
• 12 Ohms