IGCSE Electricity test revision

Thicker wires have _______ resistance than thinner wires.

• more
• less
• the same

As the resistance in a circuit increases, the electric current __________.

• increases
• decreases
• stays the same

Electric current is measured in ______.

• Watts
• Volts
• Amperes

Which formulas represents Ohm's law?

• V=IR
• R=IV
• I=RV

What is the unit for resistance?

• Volts
• Amperes
• Ohms

How many volts are in a circuit with a battery that has a resistance of 10 Ohms and a current of 2 Amps? 

• .5 Volts
• 5 Volts
• 20 Volts

Electricity is the flow of _________.

• protons
• neutrons
• electrons

Tags

NGSS.HS-PS3-5

If the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor

• 2.1 Amps
• 2.4 Amps
• 1.71 Amps
• 15 Amps

What happens to an LDR in bright light

• Resistance remains constant

• Resistance increase

• Resistance decreases

• Resistance is unchanged

10C of charge flows in a wire every 2 seconds. Calculate the current in the wire.

• 5 Ohms

• 5 Amps

• 0.2 Volts

• 0.2 Amps