Electrical

What is the formula for electromotive force (EMF)?

• E = IR

• E = mc^2

• E = hf

• E = V + Ir

Which material is a good conductor?

• Plastic

• Wood

• Metal

• Glass

The two types of electrical flow are:

• Alternating Current and Direct Current

• Positive Flow and Negative Flow

• Static Electricity and Current Electricity

• Voltage and Amperage

What is the unit of EMF?

• Volt

• Ampere

• Ohm

• Watt

What is the formula for electric current?

• I = V/R

• I = R/V

• I = V*R

• I = V+R

Which of the following is a property of conductors to restrict current flow?

• Resistance

• Conductivity

• Capacitance

• Inductance

What is a circuit?

• A closed path through which electricity flows

• A type of battery

• A kind of resistor

• A form of energy

Electrical current is a flow of electrons around a circuit. True or False?

• True

• False

What is this called?

• The phenomenon of current flow from positive to negative is called conventional current.

• The phenomenon of current flow from negative to positive is called reverse current.

• The phenomenon of current flow in a closed loop is called circular current.

• The phenomenon of current flow without resistance is called superconductivity.

What is the potential difference measured in?

• Volts

• Amperes

• Ohms

• Watts