PS Electricity Unit Test

Front

What is the symbol for a battery?

Back

The symbol for a battery is represented by two parallel lines, one longer than the other.

Front

What is a superconductor?

Back

A superconductor is a material that conducts electricity with zero resistance.

Front

What type of circuit allows other components to function if one fails?

Back

A parallel circuit allows other components to function if one fails.

Front

How do you calculate resistance using Ohm's Law?

Back

Resistance (R) can be calculated using the formula R = V/I, where V is voltage and I is current.

Front

What is the unit of electrical resistance?

Back

The unit of electrical resistance is Ohm (Ω).

Front

What happens in an open circuit?

Back

In an open circuit, the flow of electricity is interrupted, and no current flows.

Front

What is the difference between AC and DC current?

Back

AC (Alternating Current) changes direction periodically, while DC (Direct Current) flows in one direction.

Front

What is the function of a resistor in a circuit?

Back

A resistor limits the flow of electric current in a circuit.

Front

What is the formula for calculating current?

Back

Current (I) can be calculated using the formula I = V/R, where V is voltage and R is resistance.

Front

What is a closed circuit?

Back

A closed circuit is a complete electrical loop that allows current to flow.