G8-INDIVIDUAL QUIZ BEE

What is the unit for Current (I)?

• Ampere/Amps

• Voltage

• Ohms

• Kelvin

What is the unit for Voltage (V)?

• Ampere/Amps

• Ohms

• Volts

• Celsius

What is the unit for Resistance (R)?

• Ampere/Amps

• Ohms

• Volts

• Celsius

The instrument use to measure resistance (R) is

• Ammeter

• Voltmeter

• Ohmmeter

• Thermometer

What is the instrument use to measure Current (I)

• Ammeter

• Ohmmeter

• Voltmeter

• Thermometer

What is the instrument use to measure the Voltage (V)?

• Ammeter

• Voltmeter

• Ohmmeter

• Thermometer

If you want to find Voltage in Volts:

 V =  IR

Given: I= 2 Amps and R = 5 Ohms

• V=10 Volts

• V=7 Volts

• V=3 Volts

• V=8 Volts

If you want to find Resistance in Ohm’s:

R = V / I  

Given: V = 9 Volts and I = 4 A

• R= 2.25 Ohms

• R=13 Ohms

• R=5 Ohms

• R=14 Ohms

If you want to find Current in Amps:

 

I = V / R 

Given: V= 140 V and R = 2Ω

• I= 142 Amps

• I= 138 Amps

• I= 70 Amps

• I=72 Amps

When do you consider repairing electrical wirings at home?

• When a newly bought extension cord is used

• When electrical appliances are in good condition

• When fuses blows out or circuit breakers trip off frequently

• When lights do not flicker even if other appliances are turned on.